Question

Find the equivalent resistance between A and B:

• A. R
• B.
• C. 2R
• D.

Answer 1

The correct option is B

All the three resistances are in parallel. So, $\frac{1}{R_{eq}}=\frac{1}{R}+\frac{1}{R}+\frac{1}{R}$
$\frac{1}{R_{eq}}=\frac{3}{R}$ or, $R_{eq}=\frac{R}{3}$.