Chapter 21 – Capacitors

The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is is The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A August 18, 2020 Category: Chapter 21 - Capacitors , NEET Last [...]

A small signal voltage V(t) = V0 ​sinωt is applied across an ideal capacitor C. Then A parallel -plate capacitor of area A k2 k3 and k4 as shown in the figure below. If a single dielectric material is to be used to have the same capacitance C in this capacitor plate separation d and [...]

A parallel -plate capacitor of area A, plate separation d and capacitance C is filled with four dielectric materials having dielectric constant k1,k2,k3 and k4 as shown in the figure below. If a single dielectric material is to be used to have the same capacitance C in this capacitor, then its dielectric constant k is [...]

Two condensers, one of capacity C and the other of capacity 2C​, are connected to a V-volt battery, as shown. the work done in charging fully both the condensers is? are connected to a V-volt battery as shown. the work done in charging fully both the condensers is? one of capacity C and the other [...]

A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dielectric constant K, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect? A parallel plate air capacitor of [...]

A capacitor of 2μF is charged as shown in the diagram. When the switch S is turned to position 2, the percentage of its stored energy dissipated is A capacitor of 2μF is charged as shown in the diagram. When the switch S is turned to position 2 the percentage of its stored energy dissipated [...]

A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system August [...]

A network of four capacitors of capacity equal to C1​ = C, C2 ​= 2C, C3 ​= 3C and C4​ = 4C are conducted to a battery as shown in the figure. The ratio of the charges on C2​ and C4​ is A network of four capacitors of capacity equal to C1​=C C2​=2C C3​=3C and [...]

A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates Three capacitors each of capacitance C and d breakdown voltage V are joined [...]

Three capacitors each of capacitance C and d breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be Three capacitors each of capacitance C and d breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be August 18, 2020 Category: Chapter [...]