The production of induced electric current without the use of any source of electricity by making relative motion between conductors or magnets.
This causes a magnetic flux change in the conductor.
Electromagnetic induction also causes kinetic energy changes to electrical energy.
It is produced in a straight wire or solenoid.
The induced current production is summarized as follows:
In simple terms:
\(\text {Force + Magnetic field} = \text {Induced current} \)
The direction of the induced current flow can be determined by Fleming's right-hand rule.
The laws that are used in the concept of electromagnetic induction are Faraday's law and Lenz's law.
The magnitude of the electromotive force (e.m.f) is directly proportional to the rate of change in the magnetic flux.
The more and faster the magnetic field is “cut off,” the more current is generated.
When the north pole of the magnet approaches the solenoid, the solenoid will reject the magnet.
To reject the north pole, the magnetic field on the solenoid becomes the north pole.
When the north pole of the magnet is away from the solenoid, the solenoid will turn to the south pole to retract the magnet.
As the poles change, the direction of the current also changes.
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