# Capacitor MCQ [Questions with Answers]

Electrical Engineering MCQ Questions title: Capacitor MCQ Questions.

The capacitor is an electrical device that stores charge in an electric field. Capacitors are widely employed in electronic devices as well as in Power applications. Given below are basic MCQ Questions on Capacitor

## The SI unit of capacitance is

The SI unit of capacitance is:

1. tesla
3. henry
4. weber

## The area of capacitor plate is increased by two times, the capacitance is now

The area of capacitor plate is increased by two times, the capacitance is now:

1. Halved
2. Same as it was before
3. Doubled
4. 4 times of original capacitance

Solution: C = εA/d

where
ε = Permivity of dielectric
A = Area of plate
d = Distance between plates in meters

From above formula one can understand that by doubling area the capacitance also doubles.

1. 90.90 pF
2. 1 uF
3. 2.75 uF
4. 5.25 uF

## A 2000 uF capacitor stores a charge of 0.5 C. The terminal voltage is

A 2000 uF capacitor stores a charge of 0.5 C. The terminal voltage is:

1. 2.5 V
2. 25 V
3. 250 V
4. 2500 V