The electric field due to an uniformly charged infinite line along the z-axis, as observed in the rest frame S of the line charge is E(r) = (eta/2.pai.Eo(x^2+y^2)). In a frame M moving 2o (x y) with a constant speed v with respect to S along the z- direction, the electric field E is (in the following use B = and y = ):- (A) E = Ex and Ey = Ey (B) E= ByE, and Ey = By Ey (C) E = Ex/y and Ey = Ey/y (D) EyEx and Ey = yEy Ans - Ex=yEx and Ey=yEy.