West Virginia Barber Written Practice Exam 2025 - Free Barber Written Practice Questions and Study Guide

Question: 1 / 400

What is the constant current in which electrons move at an even rate and flow in only one direction?

Ac (Alternating current)

Dc (Direct current)

Direct current (DC) is the constant current in which electrons move at an even rate and flow in only one direction. This type of current is commonly used in electronics and electrical systems where a steady and consistent flow of electricity is required.

Option A, Alternating current (AC), is not the correct answer because AC constantly changes direction, unlike DC which flows in one direction.

Option C, Rheostat, is a variable resistor used to control current flow, but it does not necessarily dictate the direction of current flow as DC does.

Option D, Volt, is a unit of electrical potential difference, not a type of current flow.

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Rheostat

Volt

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