Chapter: Capacitance
1.

If the plates of capacitor are oppositely charged then the total charge is equal to

A. negative
B. positive
C. zero
D. infinite
Answer» C. zero
2.

Area under current-time graph represents

A. magnitude of charge
B. dielectric
C. amount of positive charge
D. amount of negative charge
Answer» A. magnitude of charge
3.

If charge stored on plates of capacitor is large, then capacitance will be

A. small
B. large
C. zero
D. infinite
Answer» B. large
4.

insulator which is placed between 2 plates of capacitor is

A. electric
B. dielectric
C. inductor
D. resistor
Answer» B. dielectric
5.

Combined capacitance is equal to the

A. sum of all capacitance of capacitors
B. product of all the capacitance
C. difference between the capacitors
D. average capacitance of capacitors
Answer» A. sum of all capacitance of capacitors
6.

capacitance and charge on plates are

A. inversely related
B. directly related
C. not related at all
D. always equal
Answer» B. directly related
7.

If the capacitors are connected in parallel, then the potential difference across each capacitor is

A. same
B. different
C. zero
D. infinite
Answer» A. same
8.

Total capacitance of 300 mF capacitor and a 600 mF in series is

A. 300 mF
B. 500 mF
C. 200 mF
D. 1000 mF
Answer» C. 200 mF
9.

Work done in charging a capacitor is given by

A. (1⁄2)QV
B. 2QV
C. QV
D. 2V
Answer» A. (1⁄2)QV
10.

Device used to store energy in electrical circuits is

A. resistor
B. inductor
C. capacitor
D. diode
Answer» C. capacitor
11.

Energy stored in a 2000 mF capacitor charged to a potential difference of 10 V is

A. 0.12 J
B. 1.3 J
C. 0.10 J
D. 3 J
Answer» C. 0.10 J
12.

Capacitor is fully charged if potential difference is equal to

A. e.m.f
B. current
C. resistance
D. power
Answer» A. e.m.f
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