1.

Charges \[+q\] and \[-q\] are placed at points A and B respectively which are a distance 2 L apart, C is the midpoint between A and S. The work done in moving a charge +Q along the semicircle CRD is:[AIPMT (S) 2007]                     

A. \[\frac{qQ}{4\pi {{\varepsilon }_{0}}L}\]
B. \[\frac{qQ}{2\pi {{\varepsilon }_{0}}L}\]
C. \[\frac{qQ}{6\pi {{\varepsilon }_{0}}L}\]
D. \[-\frac{qQ}{6\pi {{\varepsilon }_{0}}L}\]
Answer» E.


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