The magnetic field shown in the figure consists of two magnetic fields. v is the velocity just required for a charged particle of mass m and charge q to pass through the magnetic field. If the particle is projected with velocity 'v', then how much time does such a charge spend in the magnetic field?
Correct answer: B. πm/qB
- A. πm/2qB
- B. πm/qB
- C. πm/4qB
- D. πm/3qB
Explanation
The explanation is given in the image below:
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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