A) \[\frac{\lambda }{2\pi {{a}^{2}}{{\varepsilon }_{0}}}\]
B) \[\frac{\lambda }{4{{\pi }^{2}}{{\varepsilon }_{0}}a}\]
C) \[\frac{\lambda }{2{{\pi }^{2}}{{\varepsilon }_{0}}a}\]
D) zero
Correct Answer: C
Solution :
Considering symmetric elements each of length \[dl\] at A and B, we note that electric fields perpendicular to PO are cancelled and those along PO are added. The electric field due to an element of length \[dl(=ad\theta )\] along PO.You need to login to perform this action.
You will be redirected in
3 sec