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Electromagnetism: Force on moving charges in magnetic field.

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A beta particle (high-speed electron) is traveling at right angles to a 0.43 T magnetic field. It has a speed of 2.5 107 m/s. What size force acts on the particle?

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A magnetic field of 27 T acts in a direction due west. An electron is traveling due south at 7.0 105 m/s. What are the magnitude and direction of the force acting on the electron?

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The force on moving charges in magnetic field electromagnetism are determined.

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A beta particle (high-speed electron) is traveling at right angles to a 0.43 T magnetic field. It has a speed of 2.5 107 m/s. What size force acts on the particle?
The force on a moving charge in a magnetic field is given by Lorentz formula

As the magnetic field and the velocity are right angles to each other, the magnitude of the force will be given by
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