Potential difference accross the terminals of a non ideal battery is :-
(A) zero when it is short circuited
(B) less than its emf when current flows from negative to positive terminal inside the battery
(C) zero when no current is drawn from the battery
(D) greater than its emf when current flows from positive to neagtive terminal inside the battery.

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Solution

(B) less than its emf when current flows from negative to positive terminal inside the battery

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