The ability to produce an electromotive force by changing the magnetic field inside a coil is used to generate.
Correct answer: B. electricity
- A. mechanical energy
- B. electricity
- C. electromagnetic force
- D. magnetic energy only
Explanation
The ability to produce an electromotive force (EMF) by changing the magnetic field inside a coil is the principle behind electromagnetic induction, which is used to generate electricity. This is the basis for many electric generators, including power plants, dynamos, and transformers.When the magnetic field inside a coil changes, an electric current is induced in the coil. This is known as electromagnetic induction. The changing magnetic field can be achieved by:- Moving a magnet near the coil- Rotating the coil within a magnetic field- Changing the current in a nearby coil
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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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