Q. There are 8 equal resistance $R.$ Two are connected in parallel, such four groups are connected in series, the total resistance of the system will be
A) $R/2$
B) $2\ R$
C) $4\ R$
D) $8\ R$
Explanation
(b) Resistance of parallel group $= \frac{R}{2}$
$\therefore$ Total equivalent resistance $= 4 \times \frac{R}{2} = 2R$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.