Solved: An electron moves in a circle of radius r around a
Chapter , Problem 86(choose chapter or problem)
An electron moves in a circle of radius r around a verylong uniformly charged wire in a vacuum chamber, asshown in Fig. 21-76. The charge density on the wire isA = 0.14 piC/ni. (a) What is the electric field at the electron(magnitude and direction in terms of r and A)? (b) What isthe speed of the electron?
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