Electric Circuit Quiz

What is electric current?

• The sound produced by a guitar

• The speed of light in a vacuum

• The movement of water through a pipe

• The flow of electric charge through a conductor.

What is the unit of electric current?

• A

• D

• C

• B

What is the direction of conventional current flow?

• It changes depending on the type of material

• From positive to negative

• In a circular motion

• From negative to positive

What is the SI unit of electric charge?

• Ampere

• Volt

• Ohm

• Coulomb

What is the formula to calculate electric current?

• P = VI

• V = IR

• R = V/I

• I = Q/t

What is the instrument used to measure electric current?

• barometer

• ammeter

• thermometer

• voltmeter

What is the difference between AC and DC current?

• AC current and DC current both flow in one direction only.

• AC current flows in one direction only, while DC current changes direction periodically.

• AC current changes direction periodically, while DC current flows in one direction only.

• AC current and DC current are the same thing.

What is the effect of increasing resistance on current in a circuit?

• Have no effect

• Increase

• Remain the same

• Decrease

What is the relationship between voltage, current, and resistance in a circuit?

• V = I * R

• V = I / R

• V = I + R

• V = I ^ R

What is the role of a switch in an electric circuit?

• Controls the flow of electricity

• Regulates the temperature of the circuit

• Transmits data wirelessly

• Generates electricity