Q. In a Wheatstone’s bridge all the four arms have equal resistance $R.$ If the resistance of the galvanometer arm is also $R,$ the equivalent resistance of the combination as seen by the battery is
A) $R/2$
B) $R$
C) $2\ R$
D) $R/4$
Explanation
The correct answer is Option B: $R$.
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.