Magnetic effect of electric current was first discovered by
Correct answer: B. Oersted
- A. Faraday
- B. Oersted
- C. Henry
- D. None of these
Explanation
Hans Christian Oersted, a Danish physicist, discovered the magnetic effect of electric current in 1820. He observed that a compass needle deflected when placed near a wire carrying an electric current. This discovery led to the development of electromagnetism, which is the study of the relationship between electricity and magnetism.
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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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