A point charge +q is placed at a distance d from an isolated conducting plane. The field at a point P on the other side of the plane is:
A
directed perpendicular to the plane and away from the plane
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B
directed perpendicular to the plane but towards the plane
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C
directed radially away from the point charges
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D
directed radially towards the point charge
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Solution
The correct option is D directed perpendicular to the plane and away from the plane When a point charge +q is placed at a distance d from an isolated conducting plane, some negative charge develops on the surface of the plane towards the charge and an equal positive charge develops on opposite side of the plane. Hence, the field at a point P on the other side of the plane is directed perpendicular to the plane and away from the plane as shown in figure.