Question Detail
Question
Transformer: primary 500 turns, secondary 2000 turns, output 1000 V. Input voltage?
Correct Answer
Option A is the correct answer.
Detailed Explanation
V_p/V_s = N_p/N_s → V_p/1000 = 500/2000 = 1/4 → V_p = 250 V.
Hint
V_p = V_s × (N_p/N_s).