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.
Magneto Motive Force is expressed as a current, I flowing through a coil of N turns. The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field.