If a charge is placed at rest in an electric field, will its path be along a line of force? Discuss the situation when the lines of force are straight and when they are curved.

Draw electric field lines of positive charge.

When a charged particle moves in a magnetic field its kinetic energy _______ .

The lines of force due to earth's magnetic field are ....... .

When a charged conductor is placed ln an external electric field, inside the conductor we have ...... .

A metallic solid is placed in a uniform electric field. The lines of force follow the path (s) shown in figure as

Think of situation when the object is not displaced in spite of a force acting on it.

Draw electric field lines when two positive charges are near.

A particle having mass m and charge q is , rest. On applying a uniform electric field E it, it starts moving. What is its kinetic energ when it travels a distance y in the direction force ?