What is Lorentz force?
{{Electromagnetism}} '''Lorentz's law''' is a law discovered by the Dutch [[physicist]] [[Hendrik Antoon Lorentz]]. Lorentz's law defines force that acts on moving charged particles in an [[Electromagnetism|electromagnetic]] field. Force consists of magnetic force and electric force. <br />F = qE (electric force) <br />If the charge is positive, the direction of the electric force is equal to direction of electric field. <br /><br />F = qv*B (magnetic force) <br />The direction of the magnetic force is given by the right hand rule. <br /><br /> If charged particles move with [[velocity]] v in an electric field E and a magnetic field B <br /><br /> F = qE + qv*B <br />F : force ([[vector]]) <br />q : charge ([[scalar]]) <br />E : electric field (vector) <br />v : velocity of particle (vector) <br />B : magnetic field (vector) <br />* is vector cross product. <br />Using this law, [[J.J. Thomson]] measured [[mass-to-charge]] [[ratio]]. [[Category:Electromagnetism]]