FREE IEM Electrical Systems & Circuit Analysis Questions and Answers

Question 1

What does Ohm's Law relate in an electrical circuit?

Accepted Answer

Voltage, current, and resistance

Answer

Voltage, resistance, and capacitance

Answer

Current, inductance, and voltage

Answer

Resistance, power, and frequency

Question 2

In a series circuit, how does the total resistance compare to individual resistances?

Accepted Answer

It is the sum of all resistances.

Answer

It is the same as the smallest resistance.

Answer

It is the average of all resistances.

Answer

It is less than the smallest resistance.

Question 3

What is the main function of a capacitor in an AC circuit?

Accepted Answer

To store electrical charge

Answer

To resist current flow

Answer

To produce electromagnetic waves

Answer

To amplify the voltage

Question 4

Which device is used to measure current in a circuit?

Accepted Answer

Ammeter

Answer

Voltmeter

Answer

Ohmmeter

Answer

Oscilloscope

Question 5

What happens to total current in a parallel circuit when more branches are added?

Accepted Answer

It increases.

Answer

It decreases.

Answer

It stays the same.

Answer

It drops to zero.