Electrical Circuits Test

Front

What is the role of a battery in an electrical circuit?

Back

The battery provides the necessary power for the circuit to function.

Front

What happens if a switch in a circuit is left open?

Back

If a switch is left open, the circuit is incomplete, and the light bulb will not light up.

Front

Which materials are good conductors of electricity?

Back

Materials like copper, aluminum, and silver are good conductors of electricity.

Front

What is the effect of replacing a light bulb with a closed switch in a circuit?

Back

Replacing a light bulb with a closed switch will not allow the circuit to function if there is no power source.

Front

How can you determine if an object conducts electricity?

Back

You can test if an object conducts electricity by placing it in a circuit and observing if the light bulb lights up.

Front

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

Back

A switch is used to open or close a circuit, controlling the flow of electricity.

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows current to flow and power devices.

Front

What is an open circuit?

Back

An open circuit is an incomplete electrical loop that prevents current from flowing.

Front

Why is copper often used in electrical wiring?

Back

Copper is used in electrical wiring because it is an excellent conductor of electricity.

Front

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

Back

This relationship is described by Ohm's Law: Voltage (V) = Current (I) x Resistance (R).