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Moving Charges and Magnetism — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMoving Charges and Magnetism1 Mark
Question
Under what condition an electron moving through a magnetic field experiences the maximum force?
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Answer

$\text{F}_\text{m}=\text{qvB} \ \sin\theta$
Force is maximum when $\sin\theta=1\ \text{or}\ \theta=90^\circ$,that is, when electron is moving perpendicular to the direction of magnetic field.

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