Lorentz Force Law

Lorentz force law helps in defining both electric field and magnetic field:
:: \overrightarrow{F} = q \overrightarrow{E} + q( \overrightarrow{v} X \overrightarrow{B} )
The electric force is straightforward, being in the direction of the electric field if the charge q is positive, but the direction of the magnetic part of the force is given by the right hand rule.
==Also refer==
* Lecture 10: Magnetic force; Magnetic fields; Ampere’s law PDF file from MIT
Category:Electromagnetism