Assertion : A larger dry cell has higher $emf$
Reason : The $emf$ of a dry cell is proportional to its size
AIIMS 2004, Easy
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The $e.m.f.$ of a dry cell is dependent upon the electrode potential of cathode and anode which in turn is dependent upon the reaction involved as well as concentration of the electrolyte. It has nothing to do with size of the cell. So, both assertion & reason are wrong.
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