Current is defined as ____.

• The flow of air through a conductor.

• The flow of electricity through a conductor.

• The strength with which current flows through a conductor.

• The amount of energy transferred during a specified time.

Ohms measures ____.

• Voltage.

• Current.

• Electrical power.

• Resistance.

Household wiring is most commonly made of ____.

• Copper.

• Iron.

• Mercury.

• Silver.

Which of the following isn’t an example of a power source?

• Electric company.

• Wall outlet.

• Gas powered generator.

• Battery.

A circuit is ____.

• A system of connected conductors that direct the path of electricity.

• A material through which electricity passes.

• Something through which electricity can’t pass.

• A measurement of electrical pressure.

A circuit is complete when it’s ____.

• Closed.

• Open.

• Full.

• Hot.

Alternating current(AC) travels ____.

• To the source of power only.

• From the source of power only.

• To and from the source of power.

• To and from the diodes.

A bulb in your strand of Christmas lights goes out, which causes them all to go out. What type of circuit do these lights operate on?

• Parallel.

• LED.

• Switch.

• Series.

The thickness of a 12-gauge wire is ____ than a 3-gauge wire.

• More thick.

• Less thick.

• The same.

• Not enough information to tell.

You have a 100 watt lightbulb and 20 volts of electrical pressure. How many amps of current do you have?

• 5.

• 2,000.

• 200.

• 6.