This electric current in the ring then interacts with the magnetic field to make it repel ... all this resistivity data and instead has a formula it uses to calculate this value.

Skipping the derivation, I have two expressions for the magnitude of the electric field along an axis perpendicular to the center of the rod. The second formula is an approximation if the length ...

In this concept explainer, the magnetic field formula, principle ... interconnected aspect of electricity and magnetism. When an electric current flows through a conductor, it generates a magnetic ...