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:
| 1. | directed perpendicular to the plane and away from the plane. |
| 2. | directed perpendicular to the plane but towards the plane. |
| 3. | directed radially away from the point charge. |
| 4. | directed radially towards the point charge. |
Hint: Use the concept of induction.
When a point positive charge is brought near an isolated conducting plane, some negative charge develops on the surface of the plane towards the charge and an equal positive charge develops on the opposite side of the plane. This process is called charging by induction.
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