17.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 = b(under root 3).

17.A point charge Q is located on the axis of a disc of radius R at a

1.	17.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 = b(under root 3).
Answer» 17.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 = b(under root 3).

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17.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 = b(under root 3).

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