There are three types of electrical power, direct current (DC), alternating current (AC) and cycle current (CC).

• A. True
• B. False
• C. Not sure
• D. Depends on definition

Answer: (B)

Power comes in two common waveform types: direct current and alternating current. Direct current flows in a single direction with a constant magnitude, like from a battery. Alternating current reverses direction and typically varies with time in a repeating cycle, which is why we talk about cycles per second (frequency). There isn’t a recognized category called cycle current. The word cycle describes the repeating nature of AC, not a separate type of electrical power. In AC systems you’ll also hear about real (active), reactive, and apparent power, but those describe how power is used and delivered rather than a third kind of current. So the statement isn’t correct.