In a laptop computer, the power converter plugs into the wall's AC outlet and it plugs into the computer's DC power jack. The direct current is composed of
A) electrons moving in the wire.
B) protons moving through the wire.
C) both protons and electrons moving through the wire in the same direction.
D) exactly one half of the voltage of the AC that operates the power converter.

Question

Quizplus · Accepted Answer

Direct current (DC) is a flow of electric charge in a single direction. In a laptop computer, the direct current is composed of electrons moving in the wire. Therefore, option A is the correct choice.

In a Laptop Computer, the Power Converter Plugs into the Wall's