A charge in uniform motion produces:
Correct answer: C. Both an electric and a magnetic field
- A. An electric field only
- B. A magnetic field only
- C. Both an electric and a magnetic field
- D. No such field at all
Explanation
A stationary charge produces only an electric field. However, when a charge moves with a constant velocity, it constitutes a steady current, which produces a magnetic field in addition to its inherent electric field.
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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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