A) zero
B) \[2\pi {{r}^{2}}E\]
C) \[\pi {{r}^{2}}E\]
D) \[\left( \pi {{r}^{2}}+\pi {{l}^{2}} \right)E\]
Correct Answer: A
Solution :
Let us take a small area \[\Delta S\]on the cylindrical surface.You need to login to perform this action.
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