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
directed perpendicular to the plane and away from the plane.
Definition: Charging by induction is a method used to charge an object without touching the object to any other charged object.
According to charging by induction technique, 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 planeHence, 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.
Final Answer: (a)