Question

A battery of emf $2$ volt and internal resistance $0.1$ ohm is being charged with a current of $5$ ampere. The potential difference between the two terminals of the batteries is

• A. $2V$
• B. $0.5V$
• C. $1.5V$
• D. $2.5V$

Answer 1

The correct option is D $2.5V$

When a cell is being charged the potential drop across it is given by
$V=E+i\times R_{int}$
Hence , $V=2+0.1\times 5$ volts