(a) (b) (c) \( (\mathrm{b}) \) In which of the above cells, the potential difference between the...

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(a)
(b)
(c)
\( (\mathrm{b}) \)
In which of the above cells, the potential difference between the terminals of a cell exceeds its emf.
(A) a
(B) \( b \)
(C) \( \mathrm{C} \)
(D) \( \mathrm{d} \)
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