Question

a metallic sphere has a charge of 10uC. A unit negative charge should be moved from A to B both 100cm away from the sphere but A being on east of sphere and B on it's west. The net work done on unit negative charge is. ​

Answer 1

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Answer 2

Step-by-step explanation:

According to question,

Work done =W (Change in potential energy )

W=U

f

−U

U

=

4πC

1×10×10

−6

(U

i

is the initial potential energy when unit is lying east)

U

f

=

4πC

1×10×10

−6

(U

f

is the final potential energy when unit is lying west)

W=

4πC

1×10×10

−6

4πC

1

1×10×10

−6

W=0