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MHT CET 2024 (10 May, Shift 2) · Moving Charge in a Magnetic Field

Moving Charge in a Magnetic Field question from MHT CET 2024 (10 May, Shift 2)

Q33MHT CET 2024 · 10 MAY · SHIFT 2Medium

Moving Charge in a Magnetic Field

A charged particle is moving in a uniform magnetic field in a circular path of radius ' $R$ '. When the kinetic energy of the particle is increased to three times, then the new radius will be

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Answer: (c)

$r = \dfrac{\sqrt{2mK}}{qB} \Rightarrow r \propto \sqrt{K}$
$K' = 3K \Rightarrow r' = \sqrt{3}\,R$
So the answer is (c) $\sqrt{3}\cdot R$ .

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