The primary of a transformer has 100 turns and operates at \(100 \mathrm{~V}-200 \mathrm{~W}\). The number…
The primary of a transformer has 100 turns and operates at \(100 \mathrm{~V}-200 \mathrm{~W}\). The number of turns in the secondary, if the output voltage is \(2000 \mathrm{~V}\), then
2000
200
100
500
Solution
For a transformer, it is given that, \(N_P=100\),
\(V_P=100 \mathrm{~V}, V_S=2000 \mathrm{~V}\)
We know that,
\(\begin{aligned}
& \frac{N_S}{N_P}=\frac{V_S}{V_P} \\
\Rightarrow \quad & N_S=\frac{V_S N_P}{V_P}=\frac{2000 \times 100}{100}=2000
\end{aligned}\)