The electric field lines from an isolated positively charged conducting sphere are

For an isolated positively charged conducting sphere, the electric field lines must be perpendicular to the surface of the conductor. This occurs because, in electrostatic equilibrium, any tangential component of the electric field would cause charges to move along the surface, which contradicts the static condition. Furthermore, for a positive charge, the field lines are directed radially outwards. Since the charge is distributed uniformly on the surface of a sphere, the field lines appear to originate from the center, extending at right angles to the surface and pointing away from the sphere. This radial symmetry ensures that the flux is positive as the lines leave the surface. Consequently, the field lines are both normal to the conducting surface and directed outwards from the center.