A transformer has 400 turns of wire in the prim... - WAEC Physics 2014 Question
A transformer has 400 turns of wire in the primary coil and 40 turns in the secondary col. If the input voltage is 150 volts. Calculate the magnitude of the output voltage
A
150V
B
55V
C
36V
D
15V
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Correct Option: D
(\frac{ES}{EP} = \frac{Ns}{Np} = \frac{Es}{150} = \frac{40}{400})
Es = (\frac{150 \times 40}{400})
= 15V
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