Question

A wire carrying $5.0V$ is applied to a primary coil of the transformer. The primary coil has $10$ turns and the secondary coil has $20$ turns. Find out the emf induced in the secondary coil?

• A. $0.50V$
• B. $5.0V$
• C. $10V$
• D. $50V$
• E. $100V$

Answer 1

Answer: (C)

$10V$

Given : $E_p=5V$ $N_p=10$ turns $N_s=20$ turns

Using $\frac{E_p}{N_p}=\frac{E_s}{N_s}$

$\therefore$ $\frac{5}{10}=\frac{E_s}{20}$ $⟹E_s=10V$