tiistai 17. elokuuta 2010

Moving charged particle experiences magnetic force

Right-hand rule is one way to remember the direction of magnetic force on charged particle. Current is in the direction of moving positive charge.
Hence, magnetic field exerts magnetic force on the rod carrying electric current.

Definition of 1 A electric current is based on the magnetic force!

The force is perpendicular to both B-field and velocity (cross-product in the formula) and does not increase the speed but change the direction of velocity at any moment. The particle begins to undergo circular path. Try how the different variables affect to the Larmor radius.

Can you conclude anything about the charges and masses of the four particles in the graph below?

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