A) Zero
B) 2 ´ 10?2 J
C) 10?2 J
D) 10 J
Correct Answer: B
Solution :
\[W=MB(1-\cos \theta );\]where \[\theta ={{180}^{o}}\] \[\Rightarrow W=2MB\Rightarrow W=2\times 2\times 5\times {{10}^{-3}}=2\times {{10}^{-2}}J\]You need to login to perform this action.
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