Q. In step-up transformer, relation between number of turns in primary $(N_{p})$ and number of turns is secondary $(N_{s})$ coils is
A) $N_{s}$ is greater than $N_{p}$
B) $N_{p}$ is greater than $N_{s}$
C) $N_{s}$ is equal to $N_{p}$
D) $N_{p} = 2N_{s}$
Explanation
(a) In step-up transformer, number of turns in primary coil is less than the number of turns in secondary coil.
$ie,\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \frac{N_{s}}{N_{p}} > 1\ \ $
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.