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A parallel plate capacitor has plates of area A and separation d and is charged to potential difference V. The charging battery is then disconnected and the plates are pulled apart to double the initial separation. The work required to separate the plates is
30
Nov
A parallel plate capacitor has plates of area A and separation d and is charged to potential difference V. The charging battery is then disconnected and the plates are pulled apart to double the initial separation. The work required to separate the plates is Minimum number of capacitors of 4μF capacitance each required to obtain [...]
The plates of a parallel plate capacitor are charged up to 100v. Now, after removing the battery, a 2mm thick plate is inserted between the plates Then, to maintain the same potential difference, the distance between the capacitor plates is increase by 1.6mm. The dielectric constant of the plate is .
30
Nov
The plates of a parallel plate capacitor are charged up to 100v. Now, after removing the battery, a 2mm thick plate is inserted between the plates Then, to maintain the same potential difference, the distance between the capacitor plates is increase by 1.6mm. The dielectric constant of the plate is . a 2mm thick plate [...]
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a 2mm thick plate is inserted between the plates Then ,
after removing the battery ,
the distance between the capacitor plates is increase by 1.6mm. The dielectric constant of the plate is . ,
The plates of a parallel plate capacitor are charged up to 100v. Now ,
to maintain the same potential difference ,
Two capacities of capacitance C1 = 3uF and C2 = 6uF arranged in series are connected to parallel to a third capacitor C3 = 4uF. This arrangement is then connected to a battery e.m.f. = 30 V as shown. The energy lost by the battery in charging the capacitors.
30
Nov
Two capacities of capacitance C1 = 3uF and C2 = 6uF arranged in series are connected to parallel to a third capacitor C3 = 4uF. This arrangement is then connected to a battery e.m.f. = 30 V as shown. The energy lost by the battery in charging the capacitors. Minimum number of capacitors of 4μF [...]
Two identical parallel plate capacitors are connected in series to a cell 120 V. A dielectric slab ( K = 3) is placed in one of the capacitor. The p.d. across the capacitors will now be
30
Nov
Two identical parallel plate capacitors are connected in series to a cell 120 V. A dielectric slab ( K = 3) is placed in one of the capacitor. The p.d. across the capacitors will now be Two identical parallel plate capacitors are connected in series to a cell 120 V. A dielectric slab ( K [...]
A parallel plate capacitor of capacitance C is having charge q0 on each plate. Now it is connected to a battery of emf V. (A) The battery supplies charges +CV and −CV to two plates (B) The outer surface of the plates have equal charges q0 (c) The facing surface have equal and opposite charges of magnitude CV
30
Nov
A parallel plate capacitor of capacitance C is having charge q0 on each plate. Now it is connected to a battery of emf V. (A) The battery supplies charges +CV and −CV to two plates (B) The outer surface of the plates have equal charges q0 (c) The facing surface have equal and opposite charges [...]
The separation between the plates of a parallel plate capacitor is made three times while it remains connected to a battery (A) the battery absorbs some energy (B) the electric field between plates remains same (c) the charge on the capacitor decrease by 66.7% (D) some work has to be done by an external agent on the plates
30
Nov
The separation between the plates of a parallel plate capacitor is made three times while it remains connected to a battery (A) the battery absorbs some energy (B) the electric field between plates remains same (c) the charge on the capacitor decrease by 66.7% (D) some work has to be done by an external agent [...]
The capacitance of a parallel plate capacitor is C0 when the space between the plate is vacuum. Now this space is filled by a slab of dielectric constant K. The capacitor is connected to a battery emf V and the slab is taken out. (A) Charge (K1)C0V flow through the battery (B) Energy (K−1)C0V^2 is absorbed by the cell (c) The external agent has to do 1/2(K−1)C0V^2 amount of work to take the slab out (D) the heat produced in connecting wires is 1/2(K−1)C0V^2
30
Nov
The capacitance of a parallel plate capacitor is C0 when the space between the plate is vacuum. Now this space is filled by a slab of dielectric constant K. The capacitor is connected to a battery emf V and the slab is taken out. (A) Charge (K1)C0V flow through the battery (B) Energy (K−1)C0V^2 is [...]
A parallel plate capacitor is connected to a cell. A metal plate of negligible thickness is inserted parallel to plates. (A) the capacitance remains same (B) the cell will supply more charge (c) Equal and opposite charges will appear pm two faces of metal plate (D) the potential difference between the plates will increase
30
Nov
A parallel plate capacitor is connected to a cell. A metal plate of negligible thickness is inserted parallel to plates. (A) the capacitance remains same (B) the cell will supply more charge (c) Equal and opposite charges will appear pm two faces of metal plate (D) the potential difference between the plates will increase Minimum [...]
An uncharged capacitor is connected to a battery. On charging the capacitor a. All the energy supplied is stored in the capacitor b. Half the energy supplied is stored in the capacitor
30
Nov
An uncharged capacitor is connected to a battery. On charging the capacitor a. All the energy supplied is stored in the capacitor b. Half the energy supplied is stored in the capacitor An uncharged capacitor is connected to a battery. On charging the capacitor a. All the energy supplied is stored in the capacitor b. [...]
A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the electromotive force of the battery. The ratio of the energy stored in the capacitor and the work done by the battery will be
30
Nov
A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the electromotive force of the battery. The ratio of the energy stored in the capacitor and the work done by the battery will be Minimum number of capacitors of 4μF capacitance each required to obtain [...]