List of top Physics Questions on Capacitance asked in CUET (UG)

A parallel plate capacitor \((C)\) is connected to a battery as shown in the figure. Consider two cases: Case-I: Key \(k\) is kept closed and plates of the capacitor are moved apart using an insulating handle. Case-II: Initially key \(k\) is closed for a long time and then opened. Now, the plates of the capacitor are moved apart using an insulating handle.

Identify the correct statements among the following: (A) In Case-I, \(Q\) remains same but \(C\) changes. (B) In Case-II, \(V\) remains same but \(C\) changes. (C) In Case-I, \(V\) remains same and hence \(Q\) changes. (D) In Case-II, \(Q\) remains same and hence \(V\) changes. Choose the correct answer from the options given below:

Three capacitors have capacitances \(2\,\mu F\), \(4\,\mu F\) and \(8\,\mu F\). When they are connected in a way to give minimum capacitance, their effective capacitance is:

A network of five capacitors is shown in the figure. The total charge stored in the network connected between \(A\) and \(B\) is:

In the figure given below, the resultant capacitance between points \(A\) and \(B\) is:

Four capacitors are connected in a circuit as shown in the figure. The effective capacitance between \(P\) and \(Q\) is:

Four capacitors are connected as shown in the figure. If \(C_1=2\,\mu F\), \(C_2=3\,\mu F\), \(C_3=5\,\mu F\) and \(C_4=10\,\mu F\), then the equivalent capacitance between points \(A\) and \(B\) is:

A parallel plate capacitor having area \(A\) and separated by distance \(d\) is filled by a copper plate of thickness \(b\). The new capacity is:

A parallel-plate air capacitor has an initial capacitance value of \( 8\,\mu\text{F} \). If the space between the plates is completely filled with a solid dielectric slab having a dielectric constant \( K = 5 \), what will the new capacitance value of the component be?

The dimensional formula of capacitance is: