Front

What are the symbols used for the units of current and resistance?

Back

Current is measured in Amperes (A) and resistance is measured in Ohms (Ω).

Front

What is the definition of an insulator?

Back

An insulator is a material that does not allow electrons to flow through it easily.

Front

How do you calculate power in an electrical circuit?

Back

Power (P) is calculated using the formula P = V x I, where V is voltage and I is current.

Front

What is the formula to calculate resistance in an electrical circuit?

Back

Resistance (R) is calculated using the formula R = V / I, where V is voltage and I is current.

Front

What is the power rating of an electric heater that requires 29A of 120V current?

Back

The power rating is 3.480 kW.

Front

What is the operating resistance of a TV with an operating voltage of 240V and current of 1A?

Back

The operating resistance is 240 Ω.

Front

What is the power consumed by a TV with an operating voltage of 240V and current of 1A?

Back

The power consumed is 240 W.

Front

What is the purpose of insulated wires in electrical circuits?

Back

Insulated wires keep electrons on course and protect us from the dangerous flow of electricity.

Front

What is the unit of measurement for electric current?

Back

The unit of measurement for electric current is the Ampere (A).

Front

What is the unit of measurement for electric resistance?

Back

The unit of measurement for electric resistance is the Ohm (Ω).