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 :
Energy \[=P\times t=100\times 2\times 60=12000\,J=12\times {{10}^{3}}J\]
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