The potential at a point in an electric field is give by `V=Rr` volt where r is distance of the point from the origin of the co-ordinate system. Find
The potential at a point in an electric field is give by `V=Rr` volt where r is distance of the point from the origin of the co-ordinate system. Find the electric field at a point `r=(hati+2hatj+2sqrt(5)hatk)m`
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