Q. The number of turns in primary and secondary coils of a transformer are 100 and 20 respectively. If an alternating potential of $200\ volt$ is applied to the primary, the induced potential in secondary will be
A) $10\ V$
B) $40\ V$
C) $1000\ V$
D) $20,000\ V$
Explanation
(b) $\frac{E_{p}}{E_{s}} = \frac{N_{p}}{N_{s}} \Rightarrow \frac{200}{E_{s}} = \frac{100}{20} \Rightarrow E_{s} = 40\ V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.