Question

(A) The potential difference across battery may be equal to its emf
(B) The potential differences across battery may be greater than its emf
(C) The potential difference across battery may be less than its emf
Out of the above statements which is/are correct

• A. A and B are correct, C is wrong
• B. A is correct, B and C are wrong
• C. B is correct, A and C are worng
• D. A,B and C are correct

Answer 1

The correct option is D A,B and C are correct

Charging cell :- $V=E+ir$ $\therefore V>E$
Discharging cell :- $V=E-ir$ $\therefore V<E$
Open circuit :- $V=E$
$\therefore$ All A, B, C are correct