MDCAT Physics MCQ #55

In a step-down transformer, the primary coil has 1000 turns and the secondary coil has 100 turns. If the primary voltage is 220 V, what is the secondary voltage?

MDCAT Physics MCQ #55

  1. Question 1

    Q1. In a step-down transformer, the primary coil has 1000 turns and the secondary coil has 100 turns. If the primary voltage is 220 V, what is the secondary voltage?

    • A) 22 V
    • B) 220 V
    • C) 2.2 V
    • D) 2200 V

    Answer: 22 V

    Explanation: Turns ratio = V_s/V_p; 100/1000 = V_s/220, so V_s = 22 V. Option B is incorrect as it's the primary voltage.