What is the magnetic force on a stationary charged particle in a uniform magnetic field?
Correct answer: A. Zero
- A. Zero
- B. F-q
- C. F = qvB
- D. F = ILBsinθ
Explanation
Option A) zero is correct. A stationary charged particle in a uniform magnetic field experiences no magnetic force. This is because the magnetic force on a charged particle is determined by its velocity (v) and the angle (θ) between the velocity and the magnetic field (B) according to the formula:F = qvBsinθIf the particle is stationary (meaning its velocity v is zero), then sinθ is also zero, and as a result, the magnetic force becomes zero (F = 0).So, for a stationary charged particle in a uniform magnetic field, the magnetic force is zero.
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About Electromagnetic Induction
Changing magnetic flux induces an emf according to Faraday's law, while Lenz's law gives the direction that opposes the change producing it. Transformers apply induction between coils to step alternating voltage up or down, with turns ratio, current transformation and energy losses determining practical operation.
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