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Physics, 10.12.2020 08:30 juliopejfuhrf5447
A transformer is designed to convert the voltage from 240 V to 12 V, and has 4000 turns on its primary coil. The turns on its secondary coil should be?
Note: V D /Vs=Np/Ns
A. 100
B. 200
C. 120
D. 480
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