Residential Wiring Chap.4 Flashcard

Front

What is the system used to size the conductors in residential wiring?

Back

American Wire Gauge (AWG)

Front

What does a voltmeter measure?

Back

Voltage

Front

What is the total opposition to current flow in an alternating current circuit?

Back

Impedance

Front

What is a break in an electrical conductor or cable called?

Back

Open circuit

Front

What color is the grounded conductor that returns current from the load back to the source?

Back

White

Front

What is the purpose of the National Electrical Code (NEC)?

Back

To provide guidelines for safe electrical installations.

Front

What does the term 'current' refer to in electrical terms?

Back

The flow of electric charge.

Front

What is the unit of measurement for electrical resistance?

Back

Ohm

Front

What is the difference between a series circuit and a parallel circuit?

Back

In a series circuit, components are connected end-to-end, while in a parallel circuit, components are connected across common points.

Front

What is the function of a circuit breaker?

Back

To protect an electrical circuit from damage caused by overload or short circuit.