A \( 10 \mathrm{eV} \) electron is circulating in a plane at right ...

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A \( 10 \mathrm{eV} \) electron is circulating in a plane at right angles to a uniform field at magnetic induction \( 10^{-4} \mathrm{~Wb} / \mathrm{m}^{2} \) (= \( 1.0 \) gauss), the orbital radius of
P electron is

W
(a) \( 11 \mathrm{~cm} \)
(b) \( 18 \mathrm{~cm} \)
(c) \( 12 \mathrm{~cm} \)
(d) \( 16 \mathrm{~cm} \)
(1996)
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