Q. If a rod has resistance $4\Omega$ and if rod is turned as half circle, then the resistance along diameter is
A) $1.56\Omega$
B) $2.44\Omega$
C) $4\Omega$
D) $2\Omega$
Explanation
The correct answer is Option C: $4\Omega$.
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.