The diagram shows the electric field in the vicinity of a charge. at which point is the electric field strongest? 1) w 2) x 3)y 4)z

The strength of electric field depends on the distance from the charge and also the distance between the electric field lines. If the electric field lines are closer to each other, the electric field is strong there. closer the electric field lines to each other in a region, stronger is the electric field. Electric field lines are closest in region Y. hence the electric field is strongest in region Y.

So correct choice is

3) Y

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