DC Circuits Webxam Refresh

Front

What indicates the number of circuits controlled by a switch? Options: Path, Voltage, Poles, Current

Back

Poles

Front

What happens if any component is removed in a series circuit?

Back

Electrical current can no longer flow.

Front

How are components connected in a parallel circuit?

Back

Along multiple paths

Front

What does a voltmeter measure? Options: Current, Resistance, Voltage, Power

Back

Voltage

Front

Why is resistance measured in ohms?

Back

To represent opposition to current flow

Front

According to Ohm's Law, what can be calculated when two parameters are known?

Back

Any of the parameters

Front

When does a short circuit occur? Options: When resistance is high, When resistance is low, When no components are connected, When power source is off

Back

When resistance is low

Front

What happens in an open circuit?

Back

No current flows

Front

What is continuity in an electrical circuit?

Back

Ability for current flow

Front

What is electrical power measured in? Options: Amperes, Joules, Volts, Watts

Back

Watts