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14 May, 19:07

What is the magnetic force acting on an electron if its speed is 3.0 * 106 meters/second and the direction is perpendicular to a magnetic field of 0.020 teslas? The value of q = - 1.6 * 10-19 coulombs.

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  1. 14 May, 20:05
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    Magnetic force = charge * speed * magnetic field

    Fm = (1.6x10^-19) (3x10^6) (0.02)

    Fm = 9.60x10^-15 N

    ^That is the magnitude of the magnetic force. If you want the direction, you will need to know what direction the speed and magnetic field are. Then you can use the left hand straight fingered rule to determine the direction of the force.
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