Capacitance of a capacitor - Jamb Physics Past Questions and Answers

Question 6:

• JAMB 1989

Three 2-µF capacitors are arranged as seen in the circuit above . The effective capacitance between E and F is

A. 0.75µF
B. 1.33µF
C. 3.00µF
D. 6.00µF

Question 7:

• JAMB 1991

The net capacitance of the circuit shown above is

A. 8.0µF
B. 6.0µF
C. 4.0µF
D. 2.0µF

Question 8:

• JAMB 1992

A 5-v battery is connected across the plates of a 2.0\(\mu\)F uncharged parallel plate capacitor. The charge on the capacitor after a long time is

A. 2.5\(\mu\)C
B. 10.0\(\mu\)C
C. 20.0\(\mu\)C
D. 50.0\(\mu\)C

Question 9:

• JAMB 1998

A parallel plate capacitor has a common plate area of 5 x 10^-8m² and plate separation of 2 x 10³m, Assuming free space, What is the capacitance? [\(\varepsilon\)_o = 9.0 X 10^-12C²N^-1m^-2]

A. 2.25 x 10^-17F
B. 4.50 x 10^-17F
C. 2.25 x 10^-16F
D. 4.50 x 10^-16F

Question 10:

• JAMB 2010

Three capacitors of capacitance 2μF, 4μFand 8μF are connected in parallel and a P.D of 6V is maintained across each capacitor, the total energy stored is

A. 2.52 x 10^-6J
B. 6.90 x 10^-6J
C. 2.52 x 10^-4J
D. 6.90 x 10^-4J