Electrons moving with different speeds enter a uniform magnetic field in a direction perpendicul...

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Electrons moving with different speeds enter a uniform magnetic field in a direction perpendicular to the field. They will move along circular paths.
\( P \)
(A) of same radius
(B) with larger radii for the faster electrons
W
(C) with smaller radii for the faster electrons
(D) either (B) or (C) depending on the magnitude of the magnetic field
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