alleryStart learning →An electron circles in a 0.01 T field. Its time period is about
A3.6 ns
B7.1 ns
C36 ns
D1.8 ns
Answer & Solution
Correct answer: A. 3.6 ns
T = 2 pi m/(eB) = 2 pi x 9.1e-31/(1.6e-19 x 0.01), which is about 3.6e-9 s.
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