Determine the force per meter on a lightning bolt at the equator that carries 20 000 a and is perpendicular to the earth’s magnetic field, 3x10-5 t. what is the direction of the force if the current is straight up and the earth’s field direction is due north which is parallel to the ground.

667.6 × 10⁶ Nm

Explanation:

To determine the force, let:

The force be  = 20 000 A

The magnetic field = 3 × 10⁻⁵

Thus, the force will be =

Thus, the direction will be parallel to the equator

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

frequency or wavelenth of em radiation in a vacuum