There is an electric field E in x-direct...

There is an electric field E in x-direction. If the work done on moving a charge of `0.2C` through a distance of 2w m along a line making a angle `60^@` with x-axis is 4 J, then what is the value of E?

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The correct Answer is:

`W=q (vec(E ).vec(S))`

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