Question

A car battery of e.m.f. $12V$ and internal resistance $5\times {10}^{-2}\Omega$ receives a current of $60A$ from an external source, then terminal potential difference of battery is :-

• A. $32V$
• B. $10V$
• C. $15V$
• D. $50V$

Answer 1

The correct option is C $15V$

Here the terminal potential , $V=12+Ir=12+(60\times 5\times {10}^{-1})=12+3=15V$