A) \[0.42\,J\text{/}s\]
B) \[0.24\,J\text{/}s\]
C) \[5\,J\text{/}s\]
D) \[1\,J\text{/}s\]
Correct Answer: B
Solution :
Rate of consumption of chemical energy \[=\] Rate of generation of electrical energy \[=EI\] \[={{I}^{2}}(R+r)\] \[={{0.2}^{2}}\times 6=.24\] (Since all the options have the same \[MKS\] units, we will not bother about the units in the final answer, as we have substituted all the unknowns in their respective \[MKS\] units)
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