Activity 5: Rope Mazes Form groups of 2-3 children, each with their own skipping rope and a few cones. Using their ropes and cones, each group makes a maze on the floor that involves a hopping and jumping challenge. Once all groups have finished, children circulate to other groups to try the different mazes.
The electric field strength is inversely related to the square of the distance. So by whatever factor d changes by, the E value is altered in the inverse direction by the square of that factor. The specifics are as follows: a) d increases by a factor of 2; divide the original E by 4.
The magnitude of the field is proportional to the number of field-lines per unit area passing through a small surface normal to the lines. Thus, field-lines determine the magnitude, as well as the direction, of the electric field. In particular, the field is strong at points where the field-lines are closely spaced, and weak at points where they are far apart. The electric field-lines associated with a positive point charge are a set of unbroken, evenly spaced (in solid angle) straight-lines which radiate from the charge--see Fig. 9.