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The transformer converts A.C. high voltage into A.C. low voltage, but it does not cause any change in frequency. If Es / Ep = Ns / Np = 5000 / 500, calculate the output voltage.

1. 200 V
2. 100 V
3. 300 V
4. 400 V

Correct answer: 100 V

Solution

The transformer equation is Es/Ep = Ns/Np. Substituting the given values, Es/Ep = 5000/500 = 10. If the input voltage (Ep) is 10 V, the output voltage (Es) will be 10 × 10 = 100 V.

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