Electric field lines, properties

Electric field lines provide information about

For the following electric field lines, the the electric field is

The diagram shows the electric field lines produced by an electrostalic focusing device. Which one of the following diagrams best shows the corresponding equipotential lines? The electric field are shown as broken lines on each of the diagrams.

Why are electric field lines perpendicular at a point on an equipotential surface of a conductor ?

Electric field lines are shown in figure. State whether the electric potential is greater at A or B.

A positive point charge (+q) is kept in the vicinity of an uncharged conducting plate. Sketch electric field lines originating from the point on to the surface of the plate. Derive the expression for the electric field at the surface of a charged conductor.

The electric field lines are closer together near object A than they are near object B . We can conclude that.

In the adjoining figure, the electric field lines for charges q_1 and q_2 are shown. Identify the sign of the charges.

Figure shows some of the electric field lines correspoinding to an electric field. The figure suggests that

The figure shows some of the electric field lines corresponding to an electric field. The figure suggests