A magnetic field is applied on an electron moving with a velocity of $10^7 \mathrm{~ms}^{-1}$ at an angle of…

A magnetic field is applied on an electron moving with a velocity of $10^7 \mathrm{~ms}^{-1}$ at an angle of $30^{\circ}$. Then the time period of revolution of the electron in a circular path of radius $2 \mathrm{~m}$ is ____
  1. $5.5 \times 10^{-6} \mathrm{~s}$
  2. $7.0 \times 10^{-7} \mathrm{~s}$
  3. $2.5 \times 10^{-6} \mathrm{~s}$
  4. $3.5 \times 10^{-7} \mathrm{~s}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (24 Apr Shift 1)

Practice more Magnetic Effects of Current questions on Aicharya