: Used to find the force between point charges.

: Describes how a changing magnetic field induces an electromotive force (EMF).

on the x-axis. Using Coulomb's law, the force is calculated as : For a sheet in the XYcap X cap Y plane with charge density , the field at

: Represents the directional energy flux (power density) of an electromagnetic field. Example Solved Problems Force Between Two Charges : Find the force on a charge at the origin due to

: For a 200-turn electromagnet that is current, the field is calculated using , resulting in Current and Time : If