Physicsmedium · Past Paper
A step-up transformer converts 10V to 100V. If the primary has 50 turns, how many turns does the secondary have?
A5
B500
C1000
D250
✓ Correct Answer: B — 500
Ns/Np = Vs/Vp. Ns/50 = 100/10. Ns = 10 * 50 = 500.
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