everyday science MCQ #50027

Which type of current flows in one direction only?

everyday science MCQ #50027

  1. Question 1

    Q1. Which type of current flows in one direction only?

    • A) AC
    • B) Alternating current
    • C) DC
    • D) Pulsating AC

    Answer: DC

    Explanation: Direct current (DC) flows in one direction only, from the negative terminal to the positive terminal, maintaining a constant polarity. Alternating current (AC) periodically reverses direction at a fixed frequency (typically 50 or 60 Hz), making it suitable for efficient long-distance transmission.