The phenomenon of generation of electric current by causing a variation in the magnetic field is known as ____.

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Concept- Electromagnetic induction is the phenomenon that results in the creation of an electric current by altering the magnetic field. In an experiment, Faraday put a coil attached to a galvanometer close to a bar magnet. Electric current in the coil is generated and flows as a result of the movement of the bar magnet toward or away from the coil.
Michael Faraday made the initial discovery of electromagnetic induction while experimenting with how to create an electric current in a circuit using only the force of the magnetic field. Faraday discovered that inserting and removing a permanent magnet from a coil causes an electromotive force to be produced, which results in current.
The following is a succinct description of the experiment that Faraday carried out:
In the experiment, a bar magnet is put next to a coil designated by C1 in the picture, which is coupled to a galvanometer.
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The galvanometer does not display any deflection while the bar magnet is kept still. The pointer in the galvanometer deflects when the north pole of the magnet is moved toward the coil, showing the presence of an electric current in the coil. The pointer in the galvanometer, however, deflects in the other direction when the north pole of the magnet is moved away from the coil, showing that the direction of the current has been reversed. The galvanometer deflects in the opposite way to what was seen when the north pole of the magnet was moved toward or away from the coil when the south pole of the magnet is moved in a similar way.
The same effects of deflections in the galvanometer are seen when the coil is moved toward and pulled away from the fixed bar magnet. The magnetic flux associated with coil C1 is altered by the relative motion of the magnet and coil. The coil experiences an electromotive force as a result. Electricity flows between the galvanometer and the coil as a result of the induced emf.
Hence, the answer is electromagnetic induction.

The phenomenon of generation of electric current by causing a variation in the magnetic field is known as ____.

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