Explore topic-wise MCQs in Electrical Engineering.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

What happens to the capacitance when the voltage across the capacitor increases?

A. Decreases
B. Increases
C. Becomes 0
D. No effect
Answer» E.
2.

Calculate the capacitance of a capacitor that stores 40microC of charge and has a voltage of 2V.

A. 20F
B. 20microF
C. 10F
D. 10microF
Answer» C. 10F
3.

What is the voltage across the capacitor if the switch is closed and steady state is reached?

A. 8V
B. 0V
C. 10V
D. Infinity
Answer» D. Infinity
4.

WHAT_HAPPENS_TO_THE_CAPACITANCE_WHEN_THE_VOLTAGE_ACROSS_THE_CAPACITOR_INCREASES??$

A. Decreases
B. Increases
C. Becomes 0
D. No effect
Answer» B. Increases
5.

Calculate the capacitance of a capacitor that stores 40microC of charge and has a voltage of 2V?

A. 20F
B. 20microF
C. 10F
D. 10microF
Answer» C. 10F
6.

What happens to the current flow in a fully charged capacitor?

A. Current flow stops
B. Current flow doubles
C. Current flow becomes half its original value
D. Current flow becomes one-fourth its original value
Answer» B. Current flow doubles
7.

When will capacitor fully charged?

A. When the voltage across its plates is half the voltage from ground to one of its plates
B. When current through the capacitor is a 1/root2 time its value
C. When the supply voltage is equal to the capacitor voltage
D. Never
Answer» D. Never
8.

When the voltage across a capacitor increases, what happens to the charge stored in it?

A. Increases
B. Decreases
C. Becomes zero
D. Cannot be determined
Answer» B. Decreases
9.

If one plate of a parallel plate capacitor is charged to positive charge the other plate is charged to?

A. Positive
B. Negative
C. Positive or negative
D. Not charged
Answer» C. Positive or negative
10.

What is the voltage across a capacitor at the time of switching, that is, when t=0?

A. Infinity
B. 0V
C. Cannot be determined
D. 1V
Answer» C. Cannot be determined
11.

If a 2F capacitor has 1C charge, calculate the voltage across its terminals.

A. 0.5V
B. 2V
C. 1.5V
D. 1V
Answer» C. 1.5V
12.

Which among the following expressions relate charge, voltage and capacitance of a capacitor?

A. Q=C/V
B. Q=V/C
C. Q=CV
D. C=Q2V
Answer» D. C=Q2V