Understanding Electricity Lesson 9 AC circuits

In ____, both the potential difference and the current change direction at a regular rate.

In the US and Canada, the standard alternating rate for electric power is _____.

Power companies use ac generators instead of dc generators, because ac can be sent over long distances at ___.

What device changes alternating current to a different combination of potential difference and current?

How does the power going into a transformer compare to the power coming out?

What values should you use when making calculations involving alternating current?

One complete electrical cycle equals ____ electrical degrees.

The frequency of electricity generated depends on the number of ___ in the generator.

What is the name of the property of a coil of wire that opposes any change in the current in the coil?

When the current changes continuously, as in an ac circuit, the ____ around the conductor also changes continuously.