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CBSE - XII Science - Physics - Electric Charges and Fields
I don't know which concept and formula is used
Asked by adityagalar2007
6th April 2024,
1:06 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is the mass of the bidy
Asked by amlanmcob
6th April 2024,
12:27 PM
CBSE - XII Science - Physics - Electric Charges and Fields
a charge of 2microcoulomb experience a force of 6N when placed at a point in an electric field .find electric field at that point
Asked by manishamunda787
2nd April 2024,
11:07 AM
CBSE - XII Science - Physics - Electric Charges and Fields
d derive an expression for electric field intensity due to uniformly charged ring on it axix
Asked by kalsichaitanya
30th December 2023,
4:08 PM
CBSE - XII Science - Physics - Electric Charges and Fields
1st
Asked by evachauhan15
29th December 2023,
10:25 AM
CBSE - XII Science - Physics - Electric Charges and Fields
what is electric field intensity? What is its S.I unit?
Asked by glorialyanzaw
13th October 2023,
5:53 PM
CBSE - XII Science - Physics - Electric Charges and Fields
answer
Asked by r01raunak
23rd May 2023,
10:24 AM
CBSE - XII Science - Physics - Electric Charges and Fields
an infinite line charge produces a field of 9×10^4 N/C at a distance of 2 cm calculate the linear charge
Asked by srishtijha944
15th July 2022,
9:55 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Three charges \( 1 \mathrm{C},-1 \mathrm{C} \), and \( 2 \mathrm{C} \) are kept on \( X \) axis \( -5 \mathrm{~cm}, x=0 \mathrm{~cm} \) amd \( x=10 \mathrm{~cm} \) respectively find net force one each of them
Asked by marshelojigas
28th June 2022,
6:46 AM
CBSE - XII Science - Physics - Electric Charges and Fields
ln a Millikan’s oil drop experiment, the horizontal plates are 1.5 cm apart. With the electric field switch off an oil drop is observed to fall with a steady velocity of 2.5×10^{-2} cm s^{-1}. When the field is switched on the upper plate being positive, the drop just remains stationary when the p.d. between the plates is 1500 V. Calculate the radius of drop (b) How many electronic charges does it carry? (c)If the p.d. between the two plates remains unchanged, with what velocity will the drop move when it has collected two more as a result of exposure to ionising radiation? (Oil density, rho=900 kgm^{3} , Viscosity of air, eta =1.8×10^{-5} Nsm^{-2}, Density of air, σ=1.293 kg m^{-3})
Asked by arjunsah797
1st April 2022,
7:31 AM
CBSE - XII Science - Physics - Electric Charges and Fields
A beam of electrons, moving with avelocity of 10^7m/s, enters midway between two horizontal parallel plates in a directions parallel to the plates. Each plate is 5 cm long. These plates are kept 2 cm apart and a potential difference of 90 V is applied between, them. Calculate the velocity of the electron- beam with which it just grazes the edge of the positive plate. (e /m=1.8×10^{11} c/kg)
Asked by arjunsah797
18th March 2022,
12:06 PM
CBSE - XII Science - Physics - Electric Charges and Fields
An oil drop of mass 3.25*10^(-15) kg falls vertically with uniform velocity , through the air between vertical parallel plates which are 2 m apart. When a p.d. of 1000 V is applied to the plates the drop moves to the positively charged plate , being inclined at 45 degrees to the vertical. Calculate the charge on the drop.
Asked by arjunsah797
15th March 2022,
9:58 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two point charges 2 C and 3 uC are placed at two comers of an equilateral triangle of side 20 cm in free space. Calculate the magnitude of resultant electric field at the third corner of the triangle. If an & - particle is placed at the third corner, what is the force acting on it? (Charge on & – particle is 3.2 x 10-19 €).
Asked by vedhachethan
19th September 2021,
1:20 PM
CBSE - XII Science - Physics - Electric Charges and Fields
hello mam When a potential difference of 1.5 V is applied across a wire of length 0.2 m and area of cross-section 0.30 mm^2 , a current of 2.4 A flows through the wire. If the number density of free electrons in the wire is 8.4 X 10^28 m^-3 , calculate the average relaxation time.
Asked by seeni2005
22nd June 2021,
4:15 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Asked by avaneesh1162
14th June 2021,
8:03 AM
CBSE - XII Science - Physics - Electric Charges and Fields
State Gauss's theorem ? Derive the expression for electric field due Spherical hollow conductor and infinitely charged sheet and linearly charged conductors.
Asked by avaneesh1162
13th June 2021,
8:56 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Three identical charge's each having value 1.0 x 10-8 C , are placed at the corner of an equilateral triangle of side 20cm . What is the force acting on unit positive charge at the centre
Asked by crazysujal786
30th May 2021,
3:05 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A simple pendulum is having bob of mass m carrying a charge q and is hanging from ceiling. A uniform electric field E is applied in downward direction then time period of simple pendulum is.
Asked by ruchiaggarwal083
12th May 2021,
8:47 AM
CBSE - XII Science - Physics - Electric Charges and Fields
An electric field E is applied between the plates a and b as shown in the figure a charge particle of mass m and charge q is projected along the direction as shown fig it's velocity v find vertical distance y covered by the partical when goes out of the electric field region
Asked by arorarajaryan2003
28th April 2021,
10:11 PM
CBSE - XII Science - Physics - Electric Charges and Fields
charges of +5µc+10 μc and -10 µc are placed in air at the corners ab and c of an equilateral triangle abc having each side equal to 5 cm. determine the resultant force on the charge at a.
Asked by Sivanigopesh
26th April 2021,
3:24 PM
CBSE - XII Science - Physics - Electric Charges and Fields
three charges of 5micro coloumb are placed at the vertices of equilateral triangle of side 10cm the force on 1micro coulomb of charge at centre of triangle will be
Asked by pariharhimani454
14th April 2021,
12:19 PM
CBSE - XII Science - Physics - Electric Charges and Fields
teach me
Asked by Subramanian.jayanth
22nd June 2020,
3:23 PM
CBSE - XII Science - Physics - Electric Charges and Fields
In fig three point charges q,-2q are q are placed along the x axis. Show that the electric field at p along the y axis is E =(1/4×3.14×e knot)×(3qa^2/y^4),when y>>a.
Asked by sharmashiva3667.12sdatl
8th June 2020,
8:32 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Fig shows a plastic ball of mass m suspended by a light string in a uniform field of intensity e.the ball comes in equilibrium at an angle thita .if ex and ey are the x component and y component of the electric field, find the charge on the ball and the tension in the string
Asked by sharmashiva3667.12sdatl
7th June 2020,
9:26 AM
CBSE - XII Science - Physics - Electric Charges and Fields
eletric field on the axis of charged ring and draw its diagram
Asked by parmarjay826
14th May 2020,
11:53 AM
CBSE - XII Science - Physics - Electric Charges and Fields
please solve
Asked by sreenivasa.pathange
6th May 2020,
11:51 AM
CBSE - XII Science - Physics - Electric Charges and Fields
this one
Asked by sg104439
24th April 2020,
1:03 PM
CBSE - XII Science - Physics - Electric Charges and Fields
What is mobility
Asked by arman452780
4th December 2019,
10:16 AM
CBSE - XII Science - Physics - Electric Charges and Fields
sir infinite rod se toh uniform electirc field hogi toh dE toh zero ho jayega na ?
Asked by honey.dronstudy
28th August 2019,
2:36 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Why is the electric field in a capacitor after introduction of dielectric= (sigma -sigma p)/ epsilon . Where sigma is surface charge density and sigma p is surface charge density of the polarised dielectric.
Asked by prakriti12oct
4th July 2019,
9:31 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Hello
Asked by jain.pradeep
28th May 2019,
9:00 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Hello
Asked by jain.pradeep
25th May 2019,
4:13 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A charge of 17.7 ×10^-4 c is distributed uniformly over a large sheet of area 200 m^2 .calculate the electric field intensity at a distance 20 cm from it in air
Asked by shiksha.jha2305
23rd May 2019,
12:10 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Please answer this question.
Asked by dineshchem108
28th April 2019,
11:01 PM
CBSE - XII Science - Physics - Electric Charges and Fields
calculate the electric field strength required to just support a water drop of mass 10 and having a change og 1.6?
Asked by musicmadiss123
21st April 2019,
10:42 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Why do the electric field lines never cross each other
Asked by brarkhush363
8th April 2019,
6:52 PM
CBSE - XII Science - Physics - Electric Charges and Fields
DO A CHARGED BODY EXERT FORCE ON UNCHARGED BODY ? IF YES WHY ?
Asked by salujavinit123
24th March 2019,
4:47 PM
CBSE - XII Science - Physics - Electric Charges and Fields
two charges q,-q are placed at (0,0,a) and (0,0,-a).Find out the electric field at (0,0,z) and (k,0,0)?
Asked by sujitrumaroy
17th March 2019,
11:14 PM
CBSE - XII Science - Physics - Electric Charges and Fields
a proton(q,m),a deutron(q,2m) and an alpha particle(q,4m) moves perpendicular to the electric field with same -1)velocity 2)momentum 3)kinetic energy.Find ratio of deflection in each case?
Asked by sujitrumaroy
17th March 2019,
11:09 PM
CBSE - XII Science - Physics - Electric Charges and Fields
why are the electric field lines perpendicular to any charged surface
Asked by hudasiddiqui321
4th March 2019,
7:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two infinity large plane
Asked by alanpeter9611
2nd March 2019,
12:57 AM
CBSE - XII Science - Physics - Electric Charges and Fields
A point charge +Q
Asked by alanpeter9611
1st March 2019,
12:50 AM
CBSE - XII Science - Physics - Electric Charges and Fields
prove electric field is conservative in nature.
Asked by ankityadavsports286
14th February 2019,
2:35 PM
CBSE - XII Science - Physics - Electric Charges and Fields
please solve the question in the picture.
Asked by rohitraman1115
12th January 2019,
12:12 PM
CBSE - XII Science - Physics - Electric Charges and Fields
The area of metallic plate is 10^-2m^2.A charge of 10 micro C is given to the plate . Determine the electric field at a point near the plate
Asked by agarrajeev06
9th January 2019,
9:20 AM
CBSE - XII Science - Physics - Electric Charges and Fields
obtain an expression showing the relation between the current density in a current carrying conductor the is drift velocity the number of free electrons per unit volume and the electronic charge derive an expression for drift velocity of free electrons
Asked by awanishraj254
30th December 2018,
10:46 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A hollow pendulum bob filled with water has a small hole at the bottom through which water escapes at a constant rate. Which of the following statements describes the variation of the time period (T) of the pendulum as the water flows out ?
T decreases first and then increases.
T increases first and then decreases.
T increases throughout.
T does not change.
Plz Choose the correct option and give reason.
T increases first and then decreases.
T increases throughout.
T does not change.
Plz Choose the correct option and give reason.
Asked by banga71
22nd October 2017,
12:21 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two point charges q1 and q2, of magnitude 20 nC and –20 nC respectively, are placed 0.2 m apart. Calculate the electric field at points A, B and C.
Asked by poojabhargava89
7th September 2017,
1:33 PM
CBSE - XII Science - Physics - Electric Charges and Fields
force between two identical charges placed at a distance of r in vacuum is F.If the whole system is dipped in water then the net force on each charge has a magnitude of ? (premittivity of water=4)
Asked by banga71
6th June 2017,
1:07 PM
CBSE - XII Science - Physics - Electric Charges and Fields
the electric field at a distance of 20cm from the centre of a dielectric sphere of radius 10cm is, 100V/m.Then E at 3cm distance from the centre of sphere is
Asked by banga71
23rd May 2017,
1:59 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two Identical Pitball have length "L" . WHat is the anf=gle between these two pitball By which Displace .
Asked by Ashish
19th April 2017,
4:56 PM
CBSE - XII Science - Physics - Electric Charges and Fields
The distance on the field point on the equatorial plane of a small electric dipole is halved. BY what factor , will the electric field due to dipole change ?
Asked by Ashish
17th April 2017,
2:50 PM
CBSE - XII Science - Physics - Electric Charges and Fields
why electric field lines donot form any closed loops and explain the physical significance of electric field
Asked by vinodjoshi112233
16th April 2017,
7:20 AM
CBSE - XII Science - Physics - Electric Charges and Fields
How is the limit in integration changing on itself ?
Asked by Varsneya Srinivas
13th April 2017,
10:25 AM
CBSE - XII Science - Physics - Electric Charges and Fields
At the three corners of an equilateral triangle three charges +Q , +Q , -Q are fitted . Find the intensity and the direction of force experienced by 2 Coulomb charge placed at the centroid of the triangle.
explain!!!!!
At the three corners of an equilateral triangle three charges +Q , +Q , -Q are fitted . Find the intensity and the direction of force experienced by 2 Coulomb charge placed at the centroid of the triangle.
explain!!!!!
Asked by ppratim02
22nd June 2016,
6:58 PM
CBSE - XII Science - Physics - Electric Charges and Fields
At the four corners of a square of side 1 m , +Q, -Q, +Q,-Q charges are fitted. Find intensity at the center of square. pls ps explain in detail and in lucid language
Asked by ppratim02
22nd June 2016,
6:18 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A sphere of radius r has electric charge uniformly distributed in its entire volume . AT a distance d from the centre inside the sphere (d<r) the electric field intensity is directly propotional to
1. 1/d
2.1/d*d
3.d
4.d*d
Asked by dilipdevesh1170
10th June 2016,
12:50 PM
CBSE - XII Science - Physics - Electric Charges and Fields
What is electrostatic induction?and could you explain me how VAN dE GRAFF generator works?
Asked by jovinraja
12th May 2016,
7:30 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Give the importance of the electric field in electrostatics.
Asked by Topperlearning User
6th May 2016,
9:31 AM
CBSE - XII Science - Physics - Electric Charges and Fields
State some properties of field lines.
Asked by Topperlearning User
5th May 2016,
5:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Ques1) The electric field at the centre of a uniformly charged ring is zero.What is the electric field at the centre of a half ring if the charge on it be Q and its radius be R?
Ques2) Two point charges Q and -3Q are placed at certain distance apart. if the electric field at the location of Q due to -3Q be E, then that at the location of -3Q due to Q will be??
Asked by ayushi
27th April 2016,
1:43 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A pendulam bob of mass 80 x 10 -6 kg carrying a charge of 2 x10 -8 C is at rest in a horizontal uniform electric field of 2 x 10 4 NC -1 . Find the tension in the thread of the pendulam and the angle it makes with the verticle .
Asked by rutujasarangmehta
4th March 2016,
10:21 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two point charges , one of them 4 times the other are separeted by 15 cm in air . At whatpoint on the line joining the charges i s the electric field zero when charges are (i) like charges (ii) unlike charges
Asked by rutujasarangmehta
4th March 2016,
10:13 AM
CBSE - XII Science - Physics - Electric Charges and Fields
ABC is a triangle with sides AB=3m ,BC=4m, and ABC=90 degree. Charge od +9 x 10 -5 C and
16 x 10 -5 are placed at corners A and C respectively . Find the magnitude and direction of electric intensity at corner B .
Asked by rutujasarangmehta
4th March 2016,
9:58 AM
CBSE - XII Science - Physics - Electric Charges and Fields
a charge 'q' is distributed along three fourth of a non conducting ring of radius 'a'. the charge per unit length on the ring is given by q=Qsin2A , where A is the azimuth angle. Find the net charge on ring. Also find the field at the centre of the ring
Asked by Sunil Soni
16th January 2016,
8:45 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What are ROGUE ELECTRIC FIELD LINES ?
Asked by Gurkaran
9th December 2015,
10:23 PM
CBSE - XII Science - Physics - Electric Charges and Fields
why do electrostatic field lines not form closed loops?
Asked by Jaispee Saran
22nd September 2015,
3:55 PM
CBSE - XII Science - Physics - Electric Charges and Fields
(a) Deduce the expression for the potential energy of a system of two charges q1 and q2 located and 
and 
, respectively, in an external electric field.
(b) Three point charges, + Q + 2Q and – 3Q are placed at the vertices of an equilateral triangle ABC of side l. If these charges are displaced to the mid-point A1, B1 and C1, respectively, find the amount of the work done in shifting the charges to the new locations.
and , respectively, in an external electric field.
Asked by Topperlearning User
10th July 2015,
9:59 AM
CBSE - XII Science - Physics - Electric Charges and Fields
1)A wheel having mass m has charges q and -q on diametrically opposite points .It remains in equilibrium on a rough inclined plane in the presence of uniform electric field E =
a) Mg/ q
b) Mg /2q
c) Mg tanQ /2q
d) None
1)A wheel having mass m has charges q and -q on diametrically opposite points .It remains in equilibrium on a rough inclined plane in the presence of uniform electric field E =
a) Mg/ q
b) Mg /2q
c) Mg tanQ /2q
d) None
Asked by thakurpratyush5
25th May 2015,
7:14 PM
CBSE - XII Science - Physics - Electric Charges and Fields
the electric potential at the surface of a cloud is 10^5 V . If the cloud is at the height of 0.75 km above the suface of the earth the energy of the electric field in the region between earth and cloud is ( area = 25* 10^6 m^2)
the electric potential at the surface of a cloud is 10^5 V . If the cloud is at the height of 0.75 km above the suface of the earth the energy of the electric field in the region between earth and cloud is ( area = 25* 10^6 m^2)
Asked by thakurpratyush5
24th May 2015,
12:07 PM
CBSE - XII Science - Physics - Electric Charges and Fields
wheel having mass m has charges q and -q on diametrically opposite points .It remains in equilibrium on a rough inclined plane .In the presence of uniform electric field E
a) a) Mg/ q
b) b) Mg /2q
c) c) Mg tanQ /2q
d) d) None
wheel having mass m has charges q and -q on diametrically opposite points .It remains in equilibrium on a rough inclined plane .In the presence of uniform electric field E
a) a) Mg/ q
b) b) Mg /2q
c) c) Mg tanQ /2q
d) d) None
Asked by thakurpratyush5
24th May 2015,
12:04 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A spherical conducting sphere of inner radius R1 and outer radius R2 has a charge Q.A charge q is placed at the centre of the shell.What is the surface charged density on the(1)inner surface
(2)outer surface of the shell?
What is the expression for the electric field at a point to x>R2 from the centre of the shell?
Asked by Rajeev
12th May 2015,
3:28 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A proton is placed in a uniform electric field directed along the position X-axis .In which direction will it tend to move?
Asked by Rajeev
12th May 2015,
2:57 PM
CBSE - XII Science - Physics - Electric Charges and Fields
- A 10cm long rod carries a charge of +50uc distributed uniformly along its length.Find the magnitude of the electric field at a point 10cm from both the ends of the rod.
Asked by Amrit
24th April 2015,
12:17 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Why should electrostatic field be zero inside a conductor?
Asked by Topperlearning User
17th April 2015,
1:15 PM
CBSE - XII Science - Physics - Electric Charges and Fields
In an electric field an electron is kept freely. If a proton replaces this electron, what will be the relationship between the forces experienced by them ?
Asked by Topperlearning User
17th April 2015,
1:13 PM
CBSE - XII Science - Physics - Electric Charges and Fields
An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 × 104 N/C in Millikan"s oil drop experiment. The density of the oil is 1.26 g/cm³. What do you think will be the radius of the drop? (g = 9.81 m/s² , e = 1.6 × 10-19)
Asked by Topperlearning User
16th April 2015,
10:39 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two point charges q1 and q2, of magnitude 20 nC and –20 nC respectively, are placed 0.2 m apart. Calculate the electric field at points A, B and C.
Asked by Topperlearning User
16th April 2015,
10:17 AM
CBSE - XII Science - Physics - Electric Charges and Fields
An electron falls through a distance of 2 cm in a uniform electric field of magnitude 2.0 x 104 N/C. The direction of the field is reversed keeping its magnitude unchanged and a proton falls through the same distance. Calculate the time of fall in each case. Compare the situation with free fall under gravity and explain the reason for contrast in two cases.
Asked by Topperlearning User
16th April 2015,
10:10 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two point charges qA = 2 μC and qA = -2 μC are located 16cm apart in vacuum. What is the electric field at the mid point O of the line AB joining the two charges? Find the force experienced by negative test charge of value 1.2 × 10-9 C placed at O.
Asked by Topperlearning User
16th April 2015,
9:58 AM
CBSE - XII Science - Physics - Electric Charges and Fields
How can we find the net electric field at a point due to a charge distribution?
Asked by Topperlearning User
16th April 2015,
9:50 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is the magnitude of the electric field at a field point 3 m from a point charge q = 6 nC?
Asked by Topperlearning User
16th April 2015,
9:48 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is an electric line of force? Mention the properties of electric lines of force.
Asked by Topperlearning User
16th April 2015,
9:45 AM
CBSE - XII Science - Physics - Electric Charges and Fields
The electric field E due to a point charge at any point near it is defined as: where, is the test charge and F is the force acting on it. What is the physical significance of in this expression?
Asked by Topperlearning User
16th April 2015,
9:43 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Define the term electric field intensity. Explain the terms source charge and test charge.
Asked by Topperlearning User
16th April 2015,
9:33 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Draw and explain the electric field lines due to point charge.
Asked by Topperlearning User
16th April 2015,
9:25 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Sketch the electric lines of force two equal and opposite point charges placed near each other.
Asked by Topperlearning User
16th April 2015,
9:21 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Sketch the electric lines of force for two equal positive point charges.
Asked by Topperlearning User
16th April 2015,
9:20 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Can we use a negative test charge to tell the direction of electric field at a point?
Asked by Topperlearning User
16th April 2015,
8:46 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Why two electric lines of force never cross each other?
Asked by Topperlearning User
16th April 2015,
8:32 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Is electric field intensity a scalar or a vector quantity?
Asked by Topperlearning User
16th April 2015,
8:31 AM
CBSE - XII Science - Physics - Electric Charges and Fields
draw a plot showing the variation of (a)electric field
(b)electric potential with distance r due to a point charge.
Asked by Pavu Taneja
6th April 2015,
9:06 PM
CBSE - XII Science - Physics - Electric Charges and Fields
An electron and a proton fall through a distance in uniform electric field E .COMPARE THE TIME OF FALL.
Asked by Ankur pandey
2nd March 2015,
11:54 PM
CBSE - XII Science - Physics - Electric Charges and Fields
why electric field is towards positive charge & away from negative charge?
Asked by Ashok Rana
18th February 2015,
11:52 AM
CBSE - XII Science - Physics - Electric Charges and Fields
draw electric field lines for 2 charges -4q and 16q are 2 metre apart ?
Asked by Ashok Rana
18th February 2015,
11:50 AM
CBSE - XII Science - Physics - Electric Charges and Fields
why electric field is conservative in nature?explain.
Asked by Shubham Jain
18th November 2014,
7:36 AM
CBSE - XII Science - Physics - Electric Charges and Fields
the distancde betwen a parallel plate capictor is 5d the positively charged plate is at x=0 and the negatively charged plate is at x=5d. Two slabs of equal thickness d is inserted bet ween them. One is conductor and another is dielectric. the conductor is placed at d and the dielectric is inserted at 3d. Plot the graph of potiential versusdistance graph
Asked by Ankan
23rd October 2014,
11:39 AM
CBSE - XII Science - Physics - Electric Charges and Fields
please give the answer and a clear reason for the following question
A point charge +q, is placed at a distance d from an
isolated conducting plane. The field at a point P on the
other side of the plane is
(a) directed perpendicular to the plane and away from
the plane.
(b) directed perpendicular to the plane but towards the plane.
(c) directed radially away from the point charge.
(d) directed radially towards the point charge.
isolated conducting plane. The field at a point P on the
other side of the plane is
(a) directed perpendicular to the plane and away from
the plane.
(b) directed perpendicular to the plane but towards the plane.
(c) directed radially away from the point charge.
(d) directed radially towards the point charge.
Asked by Alekhya K
17th July 2014,
8:11 PM
CBSE - XII Science - Physics - Electric Charges and Fields
THE CENTRES OF 2 IDENTICAL SMALL CONDUCTING SPHERES ARE 1M APART.THEY CARRY CHARGES OF OPPOSITE KIND AND ATTRACT EACH OTHER WITH A FORCE F.WHEN THEY ARE CONNECTED BY A CONDUCTING WIRE THEY REPEL EACH OTHER WITH A FORCE F/3.WHAT IS THE RATIO OF MAGNITUDE OF CHARGES CARRIED BY THECHARGES INITIALLY?
(A)1:1 (B)2:1 (C)3:1 (D)4:1
Asked by HARSHALI DOSHI
16th July 2014,
8:26 AM
