A power transmission line feeds input power at 2300 V to a step down t

1.	A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns. The number of turns in the secondary in order to get output power at 230 V are (i) 4 (ii) 40 (iii) 400 (iv) 4000
Answer» Answer is (iii) 400 Given E_i = 2300V E₀ = 230V N_p = 4000 N_s = ? \(\frac{E_i}{E_0}=\frac{N_p}{N_s}\) \(\frac{2300}{230}=\frac{4000}{x}\) x = 400 = N_s = No of turns in secondary coil

A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns. The number of turns in the secondary in order to get output power at 230 V are (i) 4 (ii) 40 (iii) 400 (iv) 4000

Answer»

Answer is (iii) 400

Given E_i = 2300V

E₀ = 230V

N_p = 4000

N_s = ?

\(\frac{E_i}{E_0}=\frac{N_p}{N_s}\)

\(\frac{2300}{230}=\frac{4000}{x}\)

x = 400 = N_s = No of turns in secondary coil

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A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns. The number of turns in the secondary in order to get output power at 230 V are (i) 4 (ii) 40 (iii) 400 (iv) 4000

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