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Quiz on circuits

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

15

0%

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 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!

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

Battery

Power supply from a wall socket

Capacitor

Resistor

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 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 unit of electrical resistance?

Volt

Ampere

Ohm

Watt

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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