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Monday, 15 June 2026
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Physics Past Questions and Answers

Topic: Capacitors

Jamb Physics Questions - Capacitors

Question 36:
The energy needed to move a unit positive charge around a complete electric circuit is called the
  • A Electromotive force
  • B Electric potential difference
  • C Electric energy
  • D Kinetic energy
View Answer & Explanation
Question 37:
A supply of 400V is connected across capacitors of 3μf and 6μf in series. Calculate the charge
  • A 8 x 10\(^{-4}\)C
  • B 4 x 10\(^{-2}\)C
  • C 8 x 10\(^{-3}\)C
  • D 4 x 10\(^{-8}\)C
View Answer & Explanation
Question 38:
When the plate area of a capacitor increases?
  • A The voltage can withstand increase
  • B The capacitance decreases
  • C The capacitance is unaffected
  • D The capacitance increases
View Answer & Explanation
Question 39:
A parallel plate capacitor separated by an air gap is made of \(0.8m^2\) tin plates and 20 mm apart. It is connected to 120 V battery. What is the charge on each plate?

Take \(ε_o\) = \(8.85×10^-12 Fm^-1\)
  • A 3.54nC
  • B 42.5nC
  • C 35.4nC
  • D 4.25nC
View Answer & Explanation