Question

In a transformer Np = 500, Ns = 5000. Input voltage is 20 volt and frequency is 50 HZ. Then in the output, we have,

Options

• 200 volt, 500 HZ

• 200 volt, 50 HZ

• 20 volt, 50 HZ

• 2 volt, 5 HZ

Answer 1

200 volt, 50 HZ

Explanation:

Np = 500, Ns = 5000, Ep = 20 V

V = 50 HZ, Es = ?

As, `(Es)/(Ep) = (Ns)/(Np)`

∴ Es = `(Ns)/(Np) xx Ep = 5000/500 xx 20` = 200 V

In a transformer, the frequency is unaffected.