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### Theory:

In the previous section, we did an activity with the moving magnet around a fixed conductor.

From that activity, we found that the motion of a magnet with respect to the coil produces an induced potential difference, which sets up an induced electric current in the circuit.

This process is called Electromagnetic induction.

Electromagnetic induction:

Electromagnetic or magnetic induction is the process of creating an Electromotive Force (EMF) or potential difference or voltage across an electrical conductor in a changing magnetic field. It is also produced when an electrical conductor is constantly moving in a stationary magnetic field.
Michael Faraday found Electromagnetic induction in $$1831$$, and James Clerk Maxwell mathematically described it as Faraday’s law of induction.
Faraday discovered that certain factors affect this production of voltage or potential difference.

They are:
• Number of Coils: The induced voltage or potential is directly proportional to the number of turns/coils of the wire. The greater the number of turns, the greater is the voltage or potential difference produced.
• Changing Magnetic field: Induced voltage or potential difference is affected by changing the magnetic field. This can be done by either moving the magnetic field around the fixed conductor or moving the conductor in the stationary magnetic field.