What describes constant current flowing in one direction?

What describes constant current flowing in one direction?

• A. Alternating Current (AC)
• B. Ohm
• C. Fuse
• D. Direct Current (DC)

Answer: (D)

Constant current flowing in one direction is Direct Current. Direct Current keeps the current steady in the same polarity, like what you get from batteries or a DC power supply, so the flow doesn’t reverse. Alternating Current, on the other hand, reverses direction repeatedly, which is what’s typical for household outlets. The other terms aren’t descriptions of current flow: Ohm refers to resistance, a property that describes how much a material slows down current, and a fuse is a safety device that opens the circuit if the current is too high.

Constant current flowing in one direction is Direct Current. Direct Current keeps the current steady in the same polarity, like what you get from batteries or a DC power supply, so the flow doesn’t reverse. Alternating Current, on the other hand, reverses direction repeatedly, which is what’s typical for household outlets. The other terms aren’t descriptions of current flow: Ohm refers to resistance, a property that describes how much a material slows down current, and a fuse is a safety device that opens the circuit if the current is too high.