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August 30, 2014

Homework Help: Physics

Posted by Physics fail on Friday, January 25, 2013 at 3:58pm.

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?

Okay so I know there's the formula

F = BIlsin0

But isn't the question missing some information? I'm very confused

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