Quiz on circuits

This is a timed quiz. You will be given 15 seconds per question. Are you ready?

Which of the following devices uses alternating current (AC)?

Battery

Power supply from a wall socket

Capacitor

Resistor

Correct! Wrong!

What does a resistor do in a circuit?

Increases the current

Decreases the current

Stores electrical energy

Directs the current

Correct! Wrong!

What is the unit of electrical resistance?

Volt

Ampere

Ohm

Watt

Correct! Wrong!

What is the total resistance in a series circuit with three resistors of 2 Ω, 4 Ω, and 6 Ω?

12 Ω

6 Ω

3 Ω

2 Ω

Correct! Wrong!

What is the purpose of a fuse in an electrical circuit?

To increase current flow

To decrease current flow

To protect the circuit from overload

To store electrical energy

Correct! Wrong!

What is Ohm’s Law?

V = I * R

P = I * R

V = P * I

P = I² * R

Correct! Wrong!

What is the primary function of a capacitor in a circuit?

To store energy in an electric field

To resist the flow of current

To control the voltage

To provide a path for current flow

Correct! Wrong!

In a parallel circuit, what happens to the total resistance when more resistors are added?

It increases

It decreases

It stays the same

It becomes zero

Correct! Wrong!

Quiz on circuits

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Which of the following devices uses alternating current (AC)?

What does a resistor do in a circuit?

What is the unit of electrical resistance?

What is the total resistance in a series circuit with three resistors of 2 Ω, 4 Ω, and 6 Ω?

What is the purpose of a fuse in an electrical circuit?

What is Ohm’s Law?

What is the primary function of a capacitor in a circuit?

In a parallel circuit, what happens to the total resistance when more resistors are added?

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