CBSE X Physics Magnetic Effects of Electric Current

please tell the important points to remember in the chapter magnetic effects?

CBSE X Physics Magnetic Effects of Electric Current

sir i want to ask that why when we move a magnet around a wire or vice ,the current is being induced in wire and , is this  due to change in magnetic field as answered by google but i want to ask why does manetic field change  let us assume that it is changed then,  one expert answered that magnetic field is created around a wire which induces current and why does magnetic field is induced in wire and why magnetic field induces current.

 

 

pls answer the coloured rest is just explanation . I hope that you will understand my doubt and answer me with good explanation .

 

CBSE XII Science Physics

why magnetic field is not conservative in nature

ICSE X Physics Electromagnetism

Who and how  gave  the rules to find the direction of magnetic field .

How did he verify them  .Are they completely accurate.

And why their direction is important . How does their direction influence them.

ICSE X Physics

Is direction of magnetic lines of force important in any way.what changes can the direction make with magnetic strength.

NEET1 ALL Class Physics Magnetic Effects of Electric Current

A circular coil of cross section area 200 centimetre square  and 20 turns is rotated about the vertical diameter with angular speed of 50 rad/s in a uniform magnetic field of magnitude 3*10-2T(10 to the power -2).calculate the maximum value of current in the coil

CBSE XII Science Physics

A peculiar question... please help me...

Asked by nitishkrnehu09 18th November 2017 10:38 PM

Answered by Expert

drive the expression for the magnetic field around a straight current carrying conductor of finite size?

please explain in detail. earlier because tomorrow is my exam.

CBSE XII Science Physics Moving Charges and Magnetism

Two short magnets P and Q are placed one over the other with their magnetic axis mutually perpendicular to each other. it is found that the resultant field at a point on the prolongation of the magnetic field of P is inclined at 30 with this axis. compare the magnetic moments of the two magnets.

NEET1 NEET1 Magnetic Effect of Current and Magnetism Moving Charges and Magnetism and Magnetism and Matter

Please give a thorough solution with reasoning.

NEET1 ALL Class Magnetic Effect of Current and Magnetism Moving Charges and Magnetism and Magnetism and Matter

Please explain it too.

NEET1 ALL Class Physics

Q.

NEET1 ALL Class Magnetic Effect of Current and Magnetism Moving Charges and Magnetism and Magnetism and Matter

Q

CBSE X Physics Magnetic Effects of Electric Current

        PLEASE expain detailed reason behind your answer ?

ICSE X Physics

a straight current carrying wire carries an electric current of 200 A..what will be the magnetic field due to this current at point 2m away from the wire?...pls give me the formula

CBSE X Physics

Magnetic lines of force always cross each other. State whether true or false.

NEET1 NEET1 Physics

What is the magnetic field intensity at the centre O,due to the current flowing through the wire

JEE Plances JEE (Main) Physics

2 identical concentric  coils X and Y charrying current in the ratio 1:2 are arranged in mutual perpendicular planes. if the magnetic field due to the coil X is B.The net field at the centre is

JEE Plances JEE (Main) Physics Moving Charges and Magnetism

Two concentric circular coils is having 10 turns with radius 0.2 metre and 0.4 metre carrying current 0.2 ampere and 0.3 ampere respectively in opposite direction in the magnetic field at the centre is

NEET1 NEET1 Physics

sir please answer

JEE Plances JEE (Main) Physics

Solve it

CBSE XII Science Physics

the couple acting on a magnet of length 10 cm pllaced in a uniform magnetic field of intensity 40 N/wb such that the axis of the magnet makes 45 with the field direcion is underroot 2 /10 Nm ,the pole strength of the manet in webers is ?

JEE Plances JEE (Main) Physics

Ques 8th

JEE Plances JEE (Main) Physics

A beam of alpha particles projected along + X axis, experiences a force due to a magnetic field along the +Y axis. What is the direction of the magnetic field?

JEE Plances JEE (Main) Physics

Question

JEE Plances JEE (Main) Physics

Ques11

JEE Plances JEE (Main) Physics

Ques6

CBSE XII Science Physics Electromagnetic Induction

A jet plane is travelling due west at the speed of 1800 km/h. what is the voltage difference developed between the ends of the wings 25m long, if the earths magnetic field at the location is 0.0005 T and the dip angle is 30°？  

CBSE XII Science Physics

What is snow rule or for what purpose this rule is used  

JEE Plances JEE (Main) Physics

Ques 20 It is single correct ques

CBSE VII Science Electric Current and its Effects

Manav made an electric circuit and placed a magnetic compass near it. What will happen to the magnetic needle when he switches the circuit ' ON '? Justify your answer.

ICSE X Physics Electromagnetism

how does no of times a coil rotated is affected by position of magnet  

NEET1 NEET1 Physics

As we know magnetic field can not do work but if a metal coin is place near to magnetic it will be attracted towards magnet .how can explain it

NEET1 NEET1 Physics

Please answer the following question with explanation

CBSE VIII Science

Three plotting compasses are placed close to a current carrying wire wrapped around an insulator as shown in fig.How many compass needles will change direction if the current through the wire is increased?

CBSE X Physics Magnetic Effects of Electric Current

what happen when a magnet placed in space  

CBSE X Physics Magnetic Effects of Electric Current

Two coplanar concentric circular conductors made of same wire of same material and thickness connected to batteries of 20 V and 16V respectively and are of radii 5 cam and 10 cm respectively. If the resistance of inner coil is 4 ohm, find magnetic induction at centre O.

CBSE X Physics Magnetic Effects of Electric Current

In what direction will a magnetic compass deflect if it is placed on the west side of a wire which is carrying current in a vertically upward direction?

CBSE VI Science Fun with Magnets

what is magnet

ICSE VI Physics

How can you make an electromagnet? What is the material used for the core of an electromagnet

CBSE XII Science Physics Electromagnetic Induction

Why displacement current is induced in a coil by change in magnetic flux produced by another coil in vicinity?

NEET NEET Physics Current Electricity

An electron is performing circular orbit of radius r and angular velocity omega. Find the magnetic field at centre. 

CBSE XII Science Physics Moving Charges and Magnetism

An electron and a proton having equal momenta enter a uniform magnetic field at right angles to the field lines. What will be the ratio of the radii of curvature of their trajectories?  

CBSE VII Science Electric Current and its Effects

which procedure will you follow to study magnetic field , if you are provided with paraffin oil, iron nail, bar magnet, battery, coil, conductor wire???

ICSE VI Physics

Define magnet 

CBSE XII Science Physics Magnetism and Matter

A MAGNETISED NEEDLE IN A UNIFORM MAGNETIC FIELD EXPERIENCES A TORQUE BUT NO NET  FORCE. HOWEVER, AN IRON NAIL NEAR A BAR MAGNET EXPERIENCES A FORCE OF ATTRACTION IN ADDITION TO TORQUE. EXPLAIN  

CBSE XII Science Physics Magnetism and Matter

MUST EVERY MAGNETIC CONFIGURATION HAVE NORTH POLE AND SOUTH POLE AND CAN WE THINK OF MAGNETIC FIELD CONFIGURATION WITH THREE POLES ?

CBSE XII Science Physics Magnetism and Matter

THE EARTH'S MAGNETIC FIELD AT THE EQUATOR IS APPOROXIMATELY 0.4G. ESTIMATE THE EARTH'S DIPOLE.

CBSE VI Science Fun with Magnets

What is magnet

CBSE XII Science Physics

Parallel conductors 

CBSE X Science

what does it mean by like magnetic needle is placed in plane of paper .plane of paper eans how is it kept?

ICSE IX Physics Magnetism

Why does magentic north deviate from the true north

CBSE XII Science Physics Magnetism and Matter

Find  the magnitude and direction 

NEET NEET Physics

Q no 2

NEET NEET Physics

Q no 32

JEE Main Physics Magnetic Effects of Current and Magnetism

the expression for the potential energy of acurrent loop  when it is placed in amagnetic field

NEET NEET Physics

Please answer the following

CBSE XII Science Physics Moving Charges and Magnetism

derivation and expression for the magnetic induction at point dou to strith current carring condoctor

JEE Main Physics Magnetic Effects of Current and Magnetism

Magnetic field created at the nucleus ?please explain the concept too

NEET NEET Physics

battery is connected between point X and y on the circumference of uniform conducting ring of radius a and resistance R, . the smaller arc between X and y substance and angle 60 degree at the centre and magnetic induction at O  due to current in the small arc is 0.1 tesla in outward direction. magnetic induction at O produce current in large arc between X and y is:- 1) 0.6T in the inward direction. 2)0.1T in the inward direction. 3)0.6T in the outward direction. 4)0.1 T in outward direction.

CBSE XII Science Physics

Hello

NEET NEET Physics

The magnetic induction in air at a distance d from an isolated point pole of strength m unit will be  

CBSE XII Science Physics Magnetism and Matter

Why can't the south pole of the magnetic needle deflect in Ampere swimming Rule??  

NEET NEET Physics

Question:A particle having a mass of 10–2 kg carries a charge of 5 × 10–6 C. The particle is given an initial horizontal velocity of 105 ms–1 in the presence of electric field  and magnetic field . To keep the particle moving in a horizontal direction, it is necessary that     (1)  should be perpendicular to the direction of velocity and  should be along the direction of velocity.     (2) Both  and  should be along the direction of velocity.     (3) Both  and  are mutually perpendicular and perpendicular to the direction of velocity.     (4)  should be along the direction of velocity and  should be perpendicular to the direction of velocity.     Which one of the following pairs of statements is possible?   1.   (1) and (3)  2. (3) and (4) 3.  (2) and (3)  4.  (2) and (4)

CBSE XII Science Physics Moving Charges and Magnetism

Hii

CBSE XII Science Physics

What will be the answer for this question?

ICSE X Physics

What is magnetic field

CBSE X Physics Magnetic Effects of Electric Current

Explain briefly about magnetic field

CBSE X Physics

What is the difference between magnetic flux and magnetic field?  

CBSE XII Science Physics

Two wires a and b carrying equal currbts of 10 ampere are placed parallel to each other with a separation of 4 cm between them as shown in fig. Find the magnetic field at P ,Q . 

CBSE X Physics

   magnetic field lines dilate or contract laterally?

JEE Main Physics

Urgent... Plz plz solve this numerical attached below. 

JEE Main Physics

Please Sir, solve the problem in the picture.  What is Curl of H in case of magnetic dipole? Please clear my doubt.

CBSE X Physics

What is difference in magnetic lines of solenoid and of bar magnet

JEE Main Physics

Sir please solve the mcq,provide steps...

NEET NEET Physics Magnetic Effects of Current and Magnetism

A toroid having inner and Outer diameter with 5 centimetre and 10 centimetre carrying a current of 10 ampere if it consists 20 turns find the magnetic field due to toroid 

CBSE XII Science Physics

If it is in the north south direction the formula for tan b should be used and ans should be cube root 4 * 10^-2

NEET NEET Physics

Please answer this

NEET NEET Physics

please answer this

NEET NEET Physics

please answer this

NEET NEET Physics

please answer this

NEET NEET Physics

please answer this

NEET NEET Physics

please answer this

NEET NEET Physics

the magnetic field B at the centre of circular coil of radius r is π times that due to a long straight wire at a distance r from it, for equal currents. The adjoining diagram shown three cases in all cases the circular part has radius r and straight one are infinitely long. For the same current the field B at the centre P in cases 1,2,3 has the ratio

NEET NEET Physics

please answer this

NEET NEET Physics

please answer this

CBSE X Physics

What will be the direction of magnetic field if  current flows from east to west in a straight conductor

CBSE XII Science Physics

Plz solve 5th sum

JEE Main Physics

a long wire with current I is bifurcated as shown in the figure dividing curent equally.The magnetic feild at point (0,a) is :

CBSE X Physics

Factors of magnetic field

CBSE X Physics Magnetic Effects of Electric Current

What is the direction of the magnetic field?

CBSE XII Science Physics

A closed loop of magnetic field is produced by a changing electric field. Are electric field and time varing electric fiels necessarily non zero at all points on tte loop and in the area enclosed by the loop?

CBSE X Physics Magnetic Effects of Electric Current

Why can't magnetic field lines around a bar magnet straight? Any specific reason why they always start from north pole and end at the south pole? Why should they ever form closed loops? Can't they just go on as straight lines without converging?  

CBSE X Physics Magnetic Effects of Electric Current

Describe an activity to 1) demonstrate the pattern of magnetic field lines around a straight conductor carrying current and 2) find the direction of the magnetic field produced for a given direction of current in a conductor.

CBSE X Physics Magnetic Effects of Electric Current

Describe an activity to 1) demonstrate the pattern of magnetic field lines around a straight conductor carrying current and 2) find the direction of the magnetic field produced for a given direction of current in a conductor. Answer has not been uploaded for this question even though it says that it has been answered

JEE Main Physics

what is magnetic field between plates

CBSE X Physics Magnetic Effects of Electric Current

List two factors on which the strength of the magnetic field lines produced by a solenoid depends.

CBSE VII Science Electric Current and its Effects

What happens when we increase the number of turns in a solenoid?

CBSE X Physics Magnetic Effects of Electric Current

name the device in which a current carrying conductor and magnetic field are used

ICSE VII Physics Electricity and Magnetism

Why a north pole iron rod repel to another iron rod of north pole?

ICSE VIII Physics Electricity and Magnetism

Name the device and it's use which is based on the above phenomenon. Earths magnetic device 

CBSE XII Science Physics

Ques 9 plz

CBSE XII Science Physics

8th ques

CBSE X Physics

Will magnetic field lines intersect when two unlike poles of a magnet attract? 

CBSE XII Science Physics Electric Charges and Fields

energy associated with a moving charges with due to

NEET NEET Physics

please answer this

CBSE XII Science Physics Magnetism and Matter

pls solve

CBSE X Physics Magnetic Effects of Electric Current

In Fleming's left hand rule which finger show the direction of magnetic field

JEE Main Physics Magnetic Effects of Current and Magnetism

S is the surface of lump of magnetic material a)Lines of B are necessarily continuous across S b)Some lines of B must be discontinuous across S c)Lines of H are necessarily continuous across S d)Lines of H cannot all be continuous across S

CBSE XII Science Physics Moving Charges and Magnetism

A current-carrying circular loop lies on a smooth horizontal plane. A) Can a uniform magnetic field be set up in such a manner that the loop turns around itself (i.e., turns about the vertical axis). (b) A current-carrying circular loop is located in a uniform external magnetic field. If the loop is free to turn, what is its orientation of stable equilibrium? Show that in this orientation, the flux of the total field (external field + field produced by the loop) is maximum. (c) A loop of irregular shape carrying current is located in an external magnetic field. If the wire is flexible, why does it change to a circular shape?      

ICSE VI Physics Magnetism

what is magnet

CBSE XII Science Physics

1

CBSE XII Science Physics

The question is uploaded image

ICSE VII Physics Electricity and Magnetism

Why is the property of magnet that like pole repel

CBSE X Physics Magnetic Effects of Electric Current

Explain the  activity  to show the end is produced  along the straight current carrying conductor  

CBSE X Science

Pls explain it

NEET NEET Physics Magnetic Effects of Current and Magnetism

Please answer this question fast..with proper explanation..!!

CBSE X Physics Magnetic Effects of Electric Current

describe an activity to show magnetic field lines around a current carrying circular conductor

CBSE XII Science Physics Moving Charges and Magnetism

pls explain

CBSE X Physics Magnetic Effects of Electric Current

Show with the help of an activity that a force is exerted on the current carrying conductor when placed in a magnetic field.

CBSE X Physics Magnetic Effects of Electric Current

With the help of a diagram of experimental setup describe an activity to show that the force acting on a current carrying conductor placed in a magnetic field increases with increase in field strength.

CBSE X Physics Magnetic Effects of Electric Current

what is a magnetic field

CBSE XII Science Physics

A beam of 30 emv alpha -  particle is to be obtained from 50 cm cyclotrone. Find the strength of the magnetic field to be applied

CBSE XII Science Physics Atoms

A loop of irregular shape carrying current is located in an external magnetic field. If the wire is flexible, why does it change to a circular shape?

Maharashtra VII Science

What are characteristic of magnetic field

CBSE XII Science Physics

Magnetic field inside solenoid

CBSE XII Science Physics

A charge is moving with 5 m/s. when the charge enter a region having magnetic field, speed of charge is?

CBSE XII Science Physics

please explain elaborately

CBSE XII Science Physics

What is the answer?

CBSE X Physics Magnetic Effects of Electric Current

Please answer

CBSE X Physics

Magnetic field due to current through a circular loop  

ICSE X Physics Electromagnetism

explain an activaty to plot the magnetic field lines produced around a straight current carrying conductor

CBSE X Physics Magnetic Effects of Electric Current

explain faradays experiment of magnet and coil.

NEET NEET Physics Magnetic Effects of Current and Magnetism

114

CBSE XII Science Physics Moving Charges and Magnetism

As we know, work done by Magnetic force is always zero in moving a charged particle./So it cannot change speed of charged particle. MY doubt is that, can magnetic force change direction of motion of charged particle?

JEE Main Physics Magnetic Effects of Current and Magnetism

Find magnetic field Bp/Bc=?

CBSE X Physics Magnetic Effects of Electric Current

if the current is flowing in the diretioning of magnetic field lines

CBSE XII Science Physics Electromagnetic Induction

The value of magenetic field produced by coduction current and displacement current are equal at the edges ofor capacitor or not?

ICSE X Physics Electromagnetism

Pls answer the following questions giving proper reasons

ICSE X Physics Electromagnetism

Does AC current create magnetic effect?

JEE Main Physics Magnetic Effects of Current and Magnetism

What is the magnitude and direction of the magnetic field due to straight current carrying wire on that wire? In the uploaded image, two wires are at right angles in a plane carry equal currents. At what points in the plane is the magnetic field zero?

JEE Main Physics Magnetic Effects of Current and Magnetism

I have one more doubt in the previous question I asked.  Doubt: In the figure, what will be the net magnetic field between the wires on the point of intersection. (I think the direction of the magnetic fields due to the two wires won't be opposite on the point of intersection between the wires so, the net magnetic field should not be zero there..)

CBSE XII Science Physics Moving Charges and Magnetism

Please refer to the uploaded image for the doubt