If a charged particle is at rest but we are seeing it from a train then we observe _.
Correct answer: C. Both fields
- A. Electric field
- B. Magnetic field
- C. Both fields
- D. None of these
Explanation
If a charged particle is at rest and you are observing it from a moving train, the observer on the train will not see any magnetic field generated by that charged particle. This is because a stationary charged particle only produces an electric field, not a magnetic field.However, if the observer is moving relative to the charged particle, they will experience a magnetic field due to the motion of the observer through the electric field created by the stationary charge. In other words, the magnetic field is only observed in relation to the motion of the observer or other charges.
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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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