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An electron moving in a uniform magnetic field of induction of intensity B,

An electron moving in a uniform magnetic field of induction of intensity B, has its radius directly proportional to

Options

(a) its charge
(b) magnetic field
(c) speed
(d) none of these

Correct Answer:

speed

Explanation:

When electron moves in magnetic field
mv² / r = qvB or, r = mv / qB.

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