Electromagnetic Induction: Report on Transformer and its working.

This report explores the concept of electromagnetic induction, focusing on its application in transformers. It begins by defining electromagnetic induction as the generation of current due to a changing magnetic field. The report then explains Faraday's law, which states that the induced voltage is proportional to the rate of change of magnetic flux, and Lenz's law, which determines the direction of the induced electromotive force, emphasizing its connection to energy conservation. The main body discusses how transformers utilize electromagnetic induction, detailing the two key principles: the creation of a magnetic field by electric current and the generation of voltage by a varying magnetic field. The report concludes by summarizing the key principles of induced electromotive force and its relevance to transformers and their applications. The report also includes references to relevant academic sources.

Assessment (Report)
1

2

INTRODUCTION
Electromagnetic induction is referred as the current produced due to voltage production
because of a charging magnetic field. This report covers what effect use footage into coil and the
way flow direction of induced current relates to energy conservation by taking an example of
transformer.
MAIN BODY
As per the Faraday’s law, whenever relative motion occurs amid conductor and magnetic
field and, voltage is induced in circuit and extent of this voltage is directly proportional to
change rate of flux. According to the Lenz's law, the direction of induced electromotive force is
such that it always opposes charge which is causing it. In electromagnetic induction, this law is
the basic law for ascertaining flow direction of induced current and is associated with law of
energy conservation (Mayer, and Varaksina, 2017). When the relative motion exists between
magnetic field and conductor, an electromotive force is induced in conductor. However, it may
not really be part of electrical circuit coils, but might be coils iron core and / or any other
system’s metallic part. For instance: transformer. An induced electromotive force within
system’s metallic part which causes a flow of current circulating around it. Transformers are
work on the electromagnetic induction principle. There are two principles on which it is based.
The first principle is that electric current generates magnetic field that is known as
electromagnetism. The second principle is that varying magnetic field generate voltage across
conductors. For transferring the current, this induced potential difference is utilised (Ryu, 2017).
CONCLUSION
As per the above mentioned report, it has been concluded that there are two principles of
induced electromotive force which ascertain how much voltage is produced in conductor.
3

REFERENCES
Books and Journals
Mayer, V.V. and Varaksina, E.I., 2017. Experimental confirmation of Lenz’s law. Physics
Education, 52(6), p.065001.
Ryu, Y.K., HAN Inc, 2017. Tablet capable of sensing location using electromagnetic induction
and electrostatic capacitance. U.S. Patent 9,772,660.
4