Electrical Terms and Definitions for Grade 7

Front

What is AC (Alternating Current)?

Back

Electric current that periodically reverses direction, commonly used in power transmission.

Front

What does an AC Generator do?

Back

Converts mechanical energy into alternating current (AC) electrical energy.

Front

What is an AC Motor?

Back

A motor that converts electrical energy into mechanical energy using a rotating magnetic field.

Front

What is Active Power?

Back

The actual power consumed or produced in an electrical circuit, measured in watts (W).

Front

What is an Actuator?

Back

A device that converts electrical signals into mechanical motion.

Front

What is an Ammeter used for?

Back

To measure electric current in amperes (A) flowing through a circuit.

Front

What is Ampacity?

Back

The maximum current a conductor can carry continuously without exceeding temperature limits.

Front

What is an Amplifier?

Back

A device that increases the amplitude or power of an electrical signal.

Front

What is an Analog Signal?

Back

A continuous and variable signal that represents information.

Front

What is an Antenna?

Back

A device that converts electrical signals into electromagnetic waves or vice versa.