Question:medium
Find the radius of trajectory of a proton moving with velocity \(4\times10^{5}\,m\,s^{-1}\) in a magnetic field of \(0.01\,T\).
Find the radius of trajectory of a proton moving with velocity \(4\times10^{5}\,m\,s^{-1}\) in a magnetic field of \(0.01\,T\).
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Remember the circular motion formula in a magnetic field:
\[
r=\frac{mv}{qB}.
\]
Larger velocity increases radius, while stronger magnetic field decreases radius.
Updated On: Jun 29, 2026
- \(0.2\,m\)
- \(0.8\,m\)
- \(0.6\,m\)
- \(0.4\,m\)
Show Solution
The Correct Option is D
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