A charged particle enters at 30° to the magnetic field. Its path becomes:
Correct answer: A. Helical
- A. Helical
- B. Elliptical
- C. Circular
- D. Straight line
Explanation
Option A is correct.When θ = 0o path is straight When θ = 90° path is circular. When 0° <θ< 90o path is helical. When a charged particle enters a magnetic field at an angle of 30 degrees to the field, the particle's path becomes a helix or helical. The magnetic force on a charged particle is given by the following equation: F = qvB sin θ where: θ is the angle between the direction of the velocity and the direction of the magnetic field (°) When the particle enters the magnetic field at an angle of 30 degrees, the angle between the velocity and the magnetic field is 30 degrees.
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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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