Question

A positive point charge ¼$q½ is kept near a charged plate. ¼i½ Draw the electric field lines of forces from point charge to the plate. ¼ii ½Derive an expression for the electric field intensity at the surface of the plate.

Answer 1

Answer:

The electric field lines comes out from a positive charge and goes into a negative charge .

fig. (1) shows closed field lines , which is impossible.

fig. (2) shows two positive charges , because field lines are coming out from both the charges and showing repulsion.

fig.(3) shows a single positive charge.

fig.(4) shows a uniform electric field from a positive plate to a negative plate.

fig.(5) shows a positive and negative charge , because field lines are coming out from a charge ( positive) and going into another charge (negative).