An electron enters a region of magnetic fi eld of
Chapter 19, Problem 19.99(choose chapter or problem)
An electron enters a region of magnetic fi eld of magnitude 0.010 0 T, traveling perpendicular to the linear boundary of the region. The direction of the fi eld is perpendicular to the velocity of the electron. (a) Determine the time it takes for the electron to leave the fi eld-fi lled region, noting that its path is a semicircle. (b) Find the kinetic energy of the electron if the radius of its semicircular path is 2.00 cm.
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