An electron is projected along the axis of circular conductor carrying current ' I ' The electron will experience (a) a force perpendicular to axis (b) a force along the axis (c) a force at angle 30° with the axis (d) no force

Answer: (d). On the axis of a circular loop, B is along the axis. Electron moves along the axis, so v ∥ B and F = evBsin θ = 0. So the answer is (d) no force.

An electron is projected along the axis of circular conductor… | MHT CET 2021 (23 Sep, Shift 1)

Q63MHT CET 2021 · 23 SEP · SHIFT 1Easy

Moving Charge in a Magnetic Field

An electron is projected along the axis of circular conductor carrying current ' $\mathrm{I}$ ' The electron will experience

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Answer: (d)

On the axis of a circular loop, $\vec{B}$ is along the axis.
Electron moves along the axis, so $\vec{v} \parallel \vec{B}$ and $F = evB\sin\theta = 0$ .
So the answer is (d) no force.

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