Chapter 3 REVIEW

Question 1

An Amp-hour (Ah)

Answer 1

An Amp-hour (Ah) is one amp of current flowing for one hour. An amp-hour is the unit of measurement for battery capacity.

Question 2

Direct current (dc)

Answer 2

Direct current (dc) is the one way flow of current, meaning that electrons are always moving in the same direction. It is the type of current produced by PV modules, and its stored in batteries.

Question 3

Alternating current (ac)

Answer 3

Alternating current (ac) is the cyclical flow of electrical current, reversing direction as it flows. It is the type of electrical current provided by utility companies.