A) \[12\times {{10}^{3}}J\]
B) \[10\times {{10}^{3}}J\]
C) \[6\times {{10}^{3}}J\]
D) \[3\times {{10}^{3}}J\]
Correct Answer: A
Solution :
Heat produced by heater is given by \[H=Pt\] Given, \[p=100W,\,t=2\,\min =2\times 60\,s=120\,s\] \[\therefore \] \[H=100\times 120=12\times {{10}^{-3}}J\]
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