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Q. The path of a charged particle in a uniform magnetic field, when the velocity and the magnetic field are perpendicular to each other is a

J & K CETJ & K CET 2011Moving Charges and Magnetism

Solution:

The path of a charged particle in a uniform magnetic field depends upon the angle between the velocity $(\vec{v})$ and the magnetic field $(\vec{B})$.
When $\vec{v}$ and $\vec{B}$ are perpendicular to each other, the path of a charged particle is a circle. It is as shown in the figure.
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