Question

A charged particle of mass 2 kg and charge 2 C moves with a velocity $\overrightarrow{v}=8\hat{i}+6\hat{j}m/s$ in a magnetic field $\overrightarrow{B}=2\hat{k}T$. Then

• A. The path of particle may be $z^2+y^2=25$
• B. The path of particle may be $x^2+z^2=25$
• C. The time period of particle will be 3.14 s
• D. The time period of particle will be 6.28 s

Answer 1

The correct option is C The time period of particle will be 3.14 s

$T=\frac{2m\pi }{Bq}=\pi ;r=\frac{mv}{Bq}=;x^2+y^2=r^2$