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An electron has a circular path of radius 0.01 m in a perpendicular magnetic induction $10^{- 3}$ T. The speed of the electron is nearly:
$1.76 \times 10^{4} m / s$
$1.76 \times 10^{6} m / s$
$3.52 \times 10^{6} m / s$
$7.04 \times 10^{5} m / s$

A

1.76 \times 10^{4} m / s

B

1.76 \times 10^{6} m / s

C

3.52 \times 10^{6} m / s

D

7.04 \times 10^{5} m / s

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Solution

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Answer is B.

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