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1 December, 07:52

What is the frequency for a beam of electrons orbiting in a field of 4.62 x 10^-3 T? Let the mass of an electrons m = 9.31 x 10^-31 kg, and the charge on an electron q = - 1.60 x 10^-19 C.

A. 129 MHz

B. 439 MHz

C. 223 MHz

D. 811 MHz

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  1. 1 December, 08:02
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