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Capacitors MCQs

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Practice free Capacitors multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 102 questions — no login required.

Question 28hard

A 10 μF, 20 μF, 22 μF, and 100 μF capacitor are in parallel. The total capacitance is

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Question 29hard

Four 0.15 μF capacitors are in parallel. The total capacitance is

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Question 30hard

The ohm is the unit of capacitance.

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Question 31hard

Two series capacitors (one 2 μF, the other of unknown value) are charged from a 24 V source. The 2 μF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is

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Question 32hard

A 0.00022 F capacitor equals how many micro-farads?

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Question 33easy

In a 20 Vac series RC circuit, if 20 V is measured across the resistor and 40 V is measured across the capacitor, the applied voltage is:

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Question 34easy

Select the equation below that represents the relationship between charge, capacitance, and voltage for a capacitor.

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Question 35easy

When is a capacitor fully charged?