JAMB and WAEC Physics questions: Capacitors

23 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Capacitors· WAEC

   A capacitor stores 60 μC when charged to 12 V. Find its capacitance.

   • A72 μF
   • B720 μF
   • C0.2 μF
   • D5 μF

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   Explanation and discussion

2. Question 22· Capacitors· JAMB

   Placing a dielectric between the plates of a capacitor increases its capacitance because the dielectric

   • Areduces the electric field between the plates for the same charge
   • Bconducts charge between the plates
   • Cincreases the distance between the plates
   • Dreduces the area of the plates

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3. Question 23· Capacitors· WAEC

   A capacitor stores a charge of 0.002 C at 50 V. Find its capacitance.

   • A2.5 × 10⁴ F
   • B0.1 F
   • C4 × 10⁻⁵ F
   • D4 × 10⁻³ F

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   Explanation and discussion