What type of electric current flows in one consistent direction?

What type of electric current flows in one consistent direction?

• A. Alternating current
• B. Direct current
• C. Variable current
• D. Continuous current

Answer: (B)

The correct answer is based on the definition of electric current types. Direct current (DC) refers to the flow of electric charge that moves in a single, consistent direction. This is typically what is produced by batteries and solar panels, where there is a steady, unidirectional flow of electrons.

In contrast, alternating current (AC) changes direction periodically, which is the standard for most household electrical systems. The terms variable current and continuous current are not standard classifications in the context of electrical currents; variable doesn't specify a directionality, while continuous is often used to describe the uninterrupted nature of a current but doesn't inherently indicate direction. Hence, direct current is the accurate terminology to describe the flow of current that remains consistently in one direction.