Q38 38 A point charge Q is located on the axis of a disc of radius R at - Physics - Electrostatic Potential And Capacitance

Question

Q38

38 A point charge Q is located on the axis of a
disc of radius R at a distance b from the plane of the disc
(figure) Show that if one-fourth of the electric flux from the
charge passes through the disc, then R= 3 b

Sanjay Singh · Accepted Answer

Dear student

<img alt="" src=
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Regards

Q38 38. A point charge Q is located on the axis of a disc of radius R at a distance b from the plane of the disc (figure). Show that if one-fourth of the electric flux from the charge passes through the disc, then R= 3 b.

Q38

38. A point charge Q is located on the axis of a disc of radius R at a distance b from the plane of the disc (figure). Show that if one-fourth of the electric flux from the charge passes through the disc, then R= $\sqrt{3}$ b.