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A uniform electric field of strength e e...

A uniform electric field of strength e exists in a region. An electron (charge -e, mass m) enters a point A with velocity `V hat(j)`. It moves through the electric field & exits at point B. Then :

A

`vec(E)=-(2 amv^(2))/(ed^(2)) hat(i)`.

B

Rate of work done by the electric field at B is `(4ma^(2) v^(3))/d^(3)`

C

Rate of work by the electric field at A is zero.

D

Velocity at B is `(2av)/d hat(i)+v hat(j)`.

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A, B, C, D
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