Describe what happens to the electric field lines when two objects with unlike charges are brought near each other.

The unlike charges attracts each other, as we can say that the two atoms or point charges which posses different properties attracts one another.

Explanation:

The electric fields shows the direction, the nature, and the magnitude of the charges been placed there in a given space. As the field lines from the positive point charge(+) goes in the outward direction and the negative charges(-) has the field lines coming towards it or they are directed towards inside the test charge.

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.