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Physics
Capacitor
Previous Years Questions

The equivalent capacitance of the arrangement shown in figure is: ...
To produce an instantaneous displacement current of $$2 \mathrm{~mA}$$ in the space between the parallel plates of a capacitor of capacitance $$4 ~\mu... The equivalent capacitance of the system shown in the following circuit is: ... The distance between the two plates of a parallel plate capacitor is doubled and the area of each plate is halved. If C is its initial capacitance, it... The effective capacitances of two capacitors are 3$$\mu$$F and 16$$\mu$$F, when they are connected in series and parallel respectively. The capacita... A capacitor of capacitance C = 900 pF is charged fully by 100 V battery B as shown in figure (a). Then it is disconnected from the battery and connect... A parallel plate capacitor has a uniform electric field$$\overrightarrow E $$in the space between the plates. If the distance between the plates is ... The equivalent capacitance of the combination shown in the figure is :... The capacitance of a parallel plate capacitor with air as medium is 6$$\mu $$F. With the introduction of a dielectric medium, the capacitance become 3... A parallel plate capacitor of capacitance 20$$\mu $$F is being charged by a voltage source whose potential is changing at the rate of 3V/s. The cond... The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is A capacitor is charged by a battery. The battery is removed and another identical unchanged capacitor is connected in parallel. The total electrostati... A parallel-plate capacitor of area a, plate separation d and capacitance C is filled with four dielectric materials having dielectric constants k1, k2... A capacitor of 2$$\mu $$F is charged as shown in the diagram. When the switch S is turned to position 2, the percentage of its stored energy dissipa... A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference$$V$$is applied between the plates... A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dieletric constant... Two thin dielectric slabs of dielectric constants K1 and K2(K1 < K2) are inserted between plates of a parallel plate capacitor, as shown in the fig... A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each pl... A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each pl... Two parallel metal plates having charges +Q and$$-$$Q face each other at a certain distance between them. If the plates are now dipped in kerosene oi... A series combination of n1 capacitors, each of value C1, is charged by a source of potential difference 4V. When another parallel combination of n2 c... Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltages of the combination will... A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each pl... Two condensers, one of capacity C and other of capacity C/2 are connected to a V-volt battery, as shown in the figure. The work done in charging fully... A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plat... A network of four capacitors of capacity equal to C1 = C, C2 = 2C, C3 = 3C and C4 = 4C are connected to a battery as shown in the figure. The ratio of... Three capacitors each of capacity 4$$\mu $$F are to be connected in such a way that the effective capacitance is$$6\mu F. This can be done by
A capacitor of capacity C1 charged upto V volt and then connected to an uncharged capacitor of capacity C2. The final potential difference across each...
Energy per unit volume for a capacitor having area A and separation d kept at potential difference V is given by
A capacitor is charged with a battery and energy stored is U. After disconnecting battery another capacitor of same capacity is connected in parallel ...
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