Question

a cylinder of length 2a and radius a has the x axis as it axis. its two ends (plane surface )are at x=a and x=3a respectively.point changes +q and -q are located at x=2a and x=0 on the axis of cylinder. the electric flux through the curved surface of cylinder surface of cylinder is
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Answer 1

x=a x=2a x=0 x=3a 2a x+y =0