Capacitance and Capacitors MCQ Part 1

Electrical Engineering MCQs on Capacitance and Capacitors – Also see Complete List of Capacitor MCQs

Voltage leads current by 90° in a capacitor

Voltage leads current by 90° in a capacitor:

1. True
2. False

Correct answer: 2. False

If plate area of a capacitor increases

If plate area of a capacitor increases:

1. The capacitance increases
2. Capacitance remains same
3. The capacitance decreases
4. The voltage it can endure increases

Correct answer: 1. The capacitance increases

The equivalent capacitance of capacitors connected in parallel is less than that of the smallest capacitor in parallel

The equivalent capacitance of capacitors connected in parallel is less than that of the smallest capacitor in parallel:

1. True
2. False

Correct answer: 2. False

A 0.00022 Farad equals how many micro-farads

A 0.00022 Farad equals how many micro-farads

1. 2.2 µF
2. 22 µF
3. 220 µF
4. 2,200 µF

Correct answer: 3. 220 µF

A liquid having dielectric constant K is added in the empty space between plates of capacitor. The capacitance of capacitor

A liquid having dielectric constant K is added in the empty space between plates of capacitor. The capacitance of capacitor:

1. Decreases by factor K²
2. Increases by factor K²
3. Decreases by factor K
4. Increases by factor K

Correct answer: 4. Increases by factor K