Which is more dangerous, touching a faulty 120-V light fixture, or a Van de Graaff generator charged to 100,000 V?

Which of these does not have an electrical charge?

Which moves faster in a gas at the same temperature?

When we say an appliance “uses up” electricity, we are actually saying that

Direct current is normally produced by a

Heat radiation relates mainly to

The safety fuse in an electric circuit is properly connected in

Hot water will cool to room temperature faster in a

Sound waves can interfere with one another so that no sound is heard.

A volume of helium gas has a temperature of 10°C. The same gas twice as hot has a temperature of