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Question
Eddy currents are used in
Eddy currents are used in
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Solution
The correct option is D All of these
An eddy current is a current set up in a conductor in response to a changing magnetic field. It generates heat as well as opposing electromagnetic forces.
Unlike mechanical brakes, which are based on friction and kinetic energy, eddy current brakes rely on electromagnetism to stop objects from moving. Eddy currents are created when a conductor passes through a magnetic field, which creates opposing forces that spin inside the conductor.
The induction furnace surrounds the jar with an alternating electrical current-carrying coil. Eddy currents are driven into the coil so that by creating high temperatures that are required for melting and producing the alloys, these currents are distributed. Therefore, induction furnaces make use of eddy current.
So it is used in induction furnaces, electromagnetic brakes and also in speedometers.
Hence, option (D) is the correct answer.
An eddy current is a current set up in a conductor in response to a changing magnetic field. It generates heat as well as opposing electromagnetic forces.
Unlike mechanical brakes, which are based on friction and kinetic energy, eddy current brakes rely on electromagnetism to stop objects from moving. Eddy currents are created when a conductor passes through a magnetic field, which creates opposing forces that spin inside the conductor.
The induction furnace surrounds the jar with an alternating electrical current-carrying coil. Eddy currents are driven into the coil so that by creating high temperatures that are required for melting and producing the alloys, these currents are distributed. Therefore, induction furnaces make use of eddy current.
So it is used in induction furnaces, electromagnetic brakes and also in speedometers.
Hence, option (D) is the correct answer.
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