If the velocity of a charged particle and magnetic field are at a fixed angle (not 90⁰), then the path will be _.
Correct answer: D. Helical
- A. Circular
- B. A straight line
- C. Spherical
- D. Helical
Explanation
The force in a magnetic field is given by, F=qVBsinθ, where if θ is smaller than 90° and greater than 0°, it moves in a helical path, while sin90° gives the maximum circular motion.
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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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