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In Physics / High School | 2014-08-04

A transformer has a primary coil with 600 turns and a secondary coil with 300 turns. If the output voltage is 320 volts, what is the input voltage?

A. 8 volts
B. 150 volts
C. 640 volts
D. 600 volts

Asked by yuhomie

Answer (2)

Number of turns in the primary Np = 600 Number of turns in the secondary Ns = 300 Output voltage Es = 320 volts Input voltage Ep = ? Assuming the transformer to be ideal, Np/Ns = Ep/Es Ep/Es = 600/300 = 2 Ep = 320*2 = 640 volts

Answered by Fantas | 2024-06-10

The input voltage (Ep) of the transformer is 640 volts, calculated from the relationship between the number of turns and the output voltage. This is derived using the transformer equation that relates the voltages and number of turns. Thus, the correct answer is option C: 640 volts.
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Answered by Fantas | 2025-02-24

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