Question

A cell of negligible resistance and e.m.f. 2 volts is connected to series combination of 2, 3 and 5 ohm. The potential difference in volts between the terminals of 3 ohm resistance will be

• A. 0.6
• B. 2/3
• C. 3
• D. 6

Answer 1

Answer: (A)

0.6

Answer 2

Current supplied by cell

$i = \frac{2}{2 + 3 + 5} = \frac{1}{5}A$

So potential difference across 3 will be $V = \frac{3 \times 1}{5} = 0.6V$