AC and DC current
Power Sources
100

Current that changes direction at a periodic rate.

alternating current ac

100

What is the voltage in a typical residential home?.

240 V

200

The number of cycles that occur per section in an alternating current

frequency

200

What is the name of an electronic device, that is used to convert AC power to DC power.

rectifier

300

The number of cycles that occur per section in an alternating current

magnetic flux

300

What is the name of this electronic component that is used to step down ac voltage?

transformer

400

Current that always flows in the same direction

direct current (dc)

400

Name one of the sources of electrical power

  • Coal-fired power plants

  • Nuclear power plants

  • Turbine generators powered by natural gas

  • Hydroelectric power plants

  • Alternative and sustainable power sources

500

A type of dc power source that consists of one or more cells

battery

500

Devices that interrupt and de-energize an electrical circuit to protect a person from electrocution in the event of a ground fault.

ground fault circuit interrupters gfci's