Question 152: AC fundamentals

Question

Primary side of a transformer is connected to $$230 \mathrm{~V}, 50 \mathrm{~Hz}$$ supply. Turns ratio of primary to secondary winding is $$10: 1$$. Load resistance connected to secondary side is $$46 \Omega$$. The power consumed in it is :

Accepted Answer

$$\begin{aligned}
& \frac{V_1}{V_2}=\frac{N_1}{N_2} \
& \frac{230}{V_2}=\frac{10}{1} \
& V_2=23 \mathrm{~V}
\end{aligned}$$
Power consumed $$=\frac{\mathrm{V}_2^2}{\mathrm{R}}$$
$$=\frac{23 	imes 23}{46}=11.5 \mathrm{~W}$$

Answer

11.5 W

Answer

12.5 W

Answer

10.0 W

Answer

12.0 W

AC fundamentals

Primary side of a transformer is connected to $230 \mathrm{~V}, 50 \mathrm{~Hz} supply. Turns ratio of primary to secondary winding is 10: 1. Load resistance connected to secondary side is 46 \Omega$. The power consumed in it is :

Choose the correct answer: