A) \[\frac{{{\lambda }^{2}}}{2\pi {{\in }_{0}}}\ell n2\]
B) \[\frac{\lambda }{2\pi {{\in }_{0}}}\ell n2\]
C) \[\frac{\lambda }{2\pi {{\in }_{0}}}\]
D) \[\frac{{{\lambda }^{2}}}{2\pi {{\in }_{0}}a}\]
Correct Answer: A
Solution :
[a] \[F=\lambda E\] \[W=\int\limits_{a}^{2a}{(\lambda E)dr}=\int\limits_{a}^{2a}{\frac{{{\lambda }^{2}}dr}{2\pi {{\in }_{0}}r}}\]You need to login to perform this action.
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