The electric field lines from an isolated positively charged conducting sphere are
tangential to the conducting surface
at right angles to the conducting surface and towards the centre of the sphere
at any angle to the conducting surface
at right angles to the conducting surface and outwards from the centre of the sphere
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-1 – 2022
In electrostatic equilibrium, the electric field inside a conductor is zero, and any net charge resides on the surface. If the electric field had a component parallel to the surface, charges would move along the surface, and the conductor would not be in equilibrium. Therefore, the electric field lines must be perpendicular (at right angles) to the surface of the conductor. For a positively charged object, electric field lines originate from the positive charges and point away from them. For a sphere, this direction is radially outwards from the centre.