Compute the amount of energy required to move a charge Q = 5μc from the origin to a point \(\left( 2m,\frac{\pi }{4},\frac{\pi }{2} \right)\) in a spherical co-ordinate system in the field \(\vec{E}=5{{e}^{-\frac{r}{4}}}{{\hat{a}}_{r}}+\frac{10}{rsin~\theta }{{\hat{a}}_{\phi }}\)

Compute the amount of energy required to move a charge Q = 5μc from t

1.	Compute the amount of energy required to move a charge Q = 5μc from the origin to a point \(\left( 2m,\frac{\pi }{4},\frac{\pi }{2} \right)\) in a spherical co-ordinate system in the field \(\vec{E}=5{{e}^{-\frac{r}{4}}}{{\hat{a}}_{r}}+\frac{10}{rsin~\theta }{{\hat{a}}_{\phi }}\)
A.	100 μJ
B.	117.9 μJ
C.	-117.9 μJ
D.	-100 μJ
Answer» D. -100 μJ

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Compute the amount of energy required to move a charge Q = 5μc from the origin to a point \(\left( 2m,\frac{\pi }{4},\frac{\pi }{2} \right)\) in a spherical co-ordinate system in the field \(\vec{E}=5{{e}^{-\frac{r}{4}}}{{\hat{a}}_{r}}+\frac{10}{rsin~\theta }{{\hat{a}}_{\phi }}\)

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