Q. The number of turns of the primary and the secondary coils of a transformer are 10 and 100 respectively. The primary voltage and the current are given as $2\ V$ and $1\ A$. Assuming the efficiency of the transformer as 90%, the secondary voltage and the current respectively are
A) $20V$ and $0.1A$
B) $0.2V$ and $1A$
C) $20V$ and $0.09\ A$
D) $0.2\ V$ and $0.9\ A$
Explanation
The correct answer is Option C: $20V$ and $0.09\ A$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.