When a charged particle enters a magnetic field at an angle of 45° , its path in the magnetic field will be:
Correct answer: C. Helical
- A. Circular
- B. Parabolic
- C. Helical
- D. Hyperbolic
Explanation
Component of velocity parallel to magnetic field is unaffected and causes particle to drift along the field lines. The component of velocity perpendicular to the field causes the particle to move in a circular path. The combination of these two motions results in a spiral or helical path.
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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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