CBSE XII Science Physics Electrostatic Potential and Capacitance
3capacitors of capacitances 2 microfarad ,3 microfarad and 6 microfrarad are connected in series with a 12 V battery .all the connecting wires are disconnected .the 3 positiveplates are connected together and the 3 negative plates are connected together.find the charges on the 3 capacitors after the recnnection
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16th May 2015
1:18 PM
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CBSE XII Science Physics
A 900pF capacitor is charged by 100V battery.
i.How much electrostatic force is stored by the capacitor?
ii.The capacitor is disconnected from the battery and connected to another 900pF capacitor.What is the electrostatic energy stored by the system?
iii.Where has the remainder of the energy gone?
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18th June 2017
7:26 AM
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CBSE XII Science Physics Electrostatic Potential and Capacitance
Obtain an expression for the capacitance of a parallel plate capacitor with dielectric medium between the 2 plates .
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3rd October 2017
7:33 PM
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CBSE XII Science Physics
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18th November 2017
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NEET1 ALL Class Physics Pollution - A Rising Environmental Problem
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9:34 AM
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the answer given is Q2/C
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20th December 2017
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CBSE XII Science Physics Electrostatic Potential and Capacitance
N spherical droplets , each of radius r have been charged to have a potential V each.If all these droplets were to coalece to form a single large drop what would be the potential of this large drop?
(Given taht the capacitance of a sphere of radius x equals 4pie absilon not Kx)
Asked by vasturushi
27th December 2017
9:17 PM
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CBSE XII Science Physics
In this question I am not able to understand the (ii) part .I have a doubt that in the solution potential for capacitor Y is V/4.But I have studied that when a capacitor is connected to a battery then potential will be V=Vo (constant).So please tell me the solution.
Asked by Balbir
1st March 2018
9:42 AM
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CBSE XII Science Physics
How does the CHARGE, CAPACITY, POTENTIAL , ELECTRIC FIELD and ENERGY associated wih a capacitor changes when the SEPERATION between the PLATES INCREASES [A] when BATTERY IS DISCONNECTED [B] when BATTERY IS CONNECTED
Asked by pardeepkumar2281
22nd May 2018
10:35 PM
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CBSE XII Science Physics
what are the difference between alternating current and direct curent? and what are the use of transformers i.e step up and step down? what is capacitor what is its use ? what is self induction? what is mutual indution? what is a inductor? what is difference between inductor and capacitor?
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27th May 2018
7:37 PM
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Find equivaent capacitance between a and b
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23rd June 2018
8:28 PM
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A dielectric slab of length l, width b, thickness d and dielectric constant k fills the space inside a parallel plate capacitor. At t=0 the slab begins to be pulled out slowly with speed v. At time t the capacity of the capacitor is
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4th August 2018
10:44 PM
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The plates of a parallel plate condenser are being moved away with velocity v. If the plate separation at any instant of time is d then the rate of change of capacity with time is proportional to
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5th August 2018
9:01 PM
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JEE Plances JEE (Main) Physics
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23rd August 2018
7:53 AM
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CBSE XII Science Physics
Derive an expression for the capacitance of a parallel plate capacitor in which a dielectric medium of dielectric constant k fills the space between the plates
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5th September 2018
10:09 AM
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NEET1 NEET1 Physics
If two spherical conductors, one of solid sphere and the other of hollow sphere of equal radii are charged to the same potential, then the charges on them are in the ratio 1:1, since their electrical capacitances are same.
Asked by harinderamit1234
22nd September 2018
5:58 PM
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If the area of one plate is doubled, and that of other plate is reduced to half, then the electrical capacitance is reduced to half since the effective area is reduced to half.
Asked by harinderamit1234
22nd September 2018
9:54 PM
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If a sheet of aluminium foil of negligible thickness is placed exactly at the centre of the two plates of a parallel plate condenser and the foil is connected to the upper plate, then the capacitance is doubled since d is reduced to half.
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25th September 2018
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Earth have how many capistance and resistance
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CBSE XII Science Physics Electrostatic Potential and Capacitance
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Derive an expression for capacitance between two parallel lines having charge density and suspended by a distance
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Please tell the solution for this question.
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19th April 2019
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Effective capacitance between a and b
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31st July 2019
6:44 PM
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CBSE XII Science Physics Electrostatic Potential and Capacitance
As the dielectric constant for metals is infinity and if we use it as a dielectric between capacitor then it's capacitance will increase infinity time then also we don't use it as a dielectric Why?
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23rd August 2019
6:24 PM
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CBSE XII Science Physics Electrostatic Potential and Capacitance
Capacitance of A parralel plate capaciter
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26th November 2019
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A capacitor of capacitance C1 = 1μF, charged up to a voltage V = 110V is connected in parallel to the terminals of a circuit consisting of two uncharged capacitors connected in series and possessing capacitance C2 = 2μF and C3 = 3μF. Then the amount of charge that will flow through the connecting wire :-
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CBSE XII Science Physics
calculate Ceq for (iv) answer is 584/385 C
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30th April 2020
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CBSE XII Science Physics Electrostatic Potential and Capacitance
The soulution in the HC Verma is different from what I have found using capacitors in series and parallel. why is there incosistency?
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11th May 2020
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capacitance
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Please find the pd
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Calculate the capacitance of the following multi slab capacitor.
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Calculate the capacitance of a parallel plate capacitor of each plate of which is of area 50cm^2 and and they are seperated by a dielectric slab of thickness 2mm of dielectric constant.
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The gap between the plates
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What is capacitance
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the capacitance of a metallic sphere is 1 uf, then it's radius is nearly (1) 1.11 m (2) 10 m (3) 9 km (4) 1.11 cm
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CBSE XII Science Physics Electrostatic Potential and Capacitance
solve option e
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