Physicsmedium · Past Paper
A transformer has 200 turns in the primary coil and 1000 turns in the secondary coil. If the primary voltage is 220V, what is the secondary voltage?
A44 V
B110 V
C1100 V
D2200 V
✓ Correct Answer: C — 1100 V
Using Vs/Vp = Ns/Np, we get Vs = 220 * (1000/200) = 220 * 5 = 1100 V.
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