Question

Which of the following describes direct current?
Group of answer choices

A current that reverses its direction many times a second at regular intervals.

A temporary increase in voltage on a power line that is 35% above the normal line voltage.

A very short pulse of very high voltages on a power line that usually last only a few milliseconds.

A current that always flows in the same direction.

Answers

GPT-4o mini
The option that describes direct current is:

**A current that always flows in the same direction.**

Direct current (DC) flows consistently in one direction, as opposed to alternating current (AC), which reverses direction periodically.