1.

The internal resistance of a primary cell is 4 ohm. It generates a current of 0.2 amp in an external resistance of 21 ohm. The rate at which chemical energy is consumed in providing the current is                                            [MP PMT 1994]

A.            \[0.42\,J/s\]                         
B.            \[0.84\,J/s\]
C.            \[5\,J/s\]                               
D.            \[1\,J/s\]
Answer» E.


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