Best answer: Why electric field lines are perpendicular to the surface?

Since the electric field lines point radially away from the charge, they are perpendicular to the equipotential lines. … The potential is the same along each equipotential line, meaning that no work is required to move a charge anywhere along one of those lines.

Why electric field lines are always normal to the surface?

Electric field is defined as the gradient of potential and the surface of a conductor has a constant potential. Therefore, there is no field along the surface of the conductor and hence the electrostatic field at the surface of a charged conductor should be Normal to the surface at every point.

Can electric field inside a conductor be non zero?

Can the electric field inside a conductor be non zero? The answer is NO. Electric field inside a conductor is always zero. Reason: The electricity conducting free electrons are only present on the external surface of the conductor.

Is electric field always perpendicular to equipotential surface?

Equipotential surfaces have equal potentials everywhere on them. … These equipotential surfaces are always perpendicular to the electric field direction, at every point.

Why do the electric field lines not form Closed Loop?

If the electric field lines form a closed loop, these lines must originate and terminate on the same charge which is not possible because electric field lines always move from positive to negative. … Therefore, we say electrostatic field lines never form closed loops.

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Why is the electric field in a conductor zero?

A conductor is a material that has a large number of free electrons available for the passage of current. … Hence in order to minimize the repulsion between electrons, the electrons move to the surface of the conductor. Hence we can say that the net charge inside the conductor is zero.