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Homework Help: Physics

Posted by Physics fail on Friday, January 25, 2013 at 5:28pm.

An electron experiences 1.2 x 10^-3 force when it enters the external magnetic field, B with a velocity v. What is the force experienced by the electron if the magnetic field is increased two times and the velocity is decreased to half?

Any help would be greatly appreciated

• Physics - Elena, Friday, January 25, 2013 at 5:35pm

  F=qvBsinα
  F1=q(v/2)(2B)sinα = qvBsinα = 1.2x10^-3 T
  

• Physics - Physics fail, Friday, January 25, 2013 at 5:53pm

  Thanks so much Elena
  

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