Free Capacitors MCQs with Answers
63 Capacitors MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Capacitors store electric charge and energy in an electric field between conductors. Work includes capacitance, the relation Q = CV, dielectric materials, charging and discharging, energy formulas, and combinations of capacitors in series and parallel. Electric potential difference is needed to understand why charge and stored energy change.
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61. When dielectric is removed from plates of a charged capacitor then electric field between plates:
- A. Remains unchanged
- B. Decreases
- C. Increases
- D. All of the above
Explanation: When the dielectric is removed from the plates of a charged capacitor, the electric field between the plates generally increases.
Correct answer: Increases- A. C - E
- B. E.C
- C. C + E
- D. C/E
Explanation: The capacitance of a parallel plate capacitor with a dielectric is given by the formula C = E * (ε₀ * A / d), where E is the dielectric…
Correct answer: C/E- A. 6
- B. 9
- C. 12
- D. 18
Explanation: When capacitors are connected in parallel, their equivalent capacitance is the sum of their individual capacitances.
Correct answer: 6