Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A particle of charge ‘q’ and mass ‘m’ is moving with velocity . It is subjected to a uniform magnetic field directed perpendicular to its velocity. Show

that it describes a circular path. Write the expression for its radius.


A charge ‘q’ projected perpendicular to the uniform magnetic field ‘B’ with velocity ‘v’. The perpendicular force F = qv × B acts like a centripetal force perpendicular to the magnetic field. Then the path followed by charge is circular as shown in the figure below. The Lorentz magnetic force acts as centripetal force thus,Here, r = radius of the circular path followed by charge projected perpendicular to the uniform magnetic field.
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts