PhysicsHardHigh School (11–12)Electricity & Magnetism › Electric Potential and CapacitanceNEETAEEE (Amrita)AMUEEEAP EAPCETBCECECMI Entrance
Created by StemPy LabA parallel-plate capacitor is changed in four ways. Match each change, with the quantity named, with its effect. List-I (Change) A. Battery connected, gap doubled: the charge on the plates B. Battery removed, gap doubled: the stored energy C. Battery connected, a slab with fills the gap: the stored energy D. Battery removed, the same slab fills the gap: the charge on the plates List-II (Effect on the quantity) I. It does not change II. It becomes double III. It becomes half IV. It becomes four times
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← Three capacitors of 2.0 µF, 3.0 µF and 6.0 µF are joined in four different ways. Match each way of joining in List-I with the equivalent capacitance in List-II. List-I (Way of joining) A. All three in parallel B. All three in series C. The 3.0 µF and 6.0 µF in series, and that pair in parallel with the 2.0 µF D. The 2.0 µF and 3.0 µF in parallel, and that pair in series with the 6.0 µF List-II (Equivalent capacitance) I. 1.0 µF II. 2.7 µF III. 4.0 µF IV. 11 µFThe figure shows four graphs, P to S, of the potential V against the distance r from a centre, with V zero very far away. Match each system with its graph. R is the radius where marked.
List-I (System)
A. A point charge
B. A thin charged spherical shell
C. A uniformly charged solid insulating sphere
D. The equatorial line of an electric dipole
List-II (Graph)
I. Graph Q
II. Graph S
III. Graph P
IV. Graph R →
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