ELECTRICAL CIRCUITS
EEE
MALLA REDDY COLLEGE OF ENGINEERING AND TECHNOLOGY
increased. Theoretically, if the coil is passed through a stronger magnetic field, there will
be more lines of force for coil to cut and hence there will be more emf induced.
By increasing the speed of the relative motion between the coil and the magnet - If the
relative speed between the coil and magnet is increased from its previous value, the coil
will cut the lines of flux at a faster rate, so more induced emf would be produced.
APPLICATIONS OF FARADAY'S LAW:
Faraday law is one of the most basic and important laws of electromagnetism. This law finds its
application in most of
the electrical machines, industries and medical field etc.
Electrical Transformers work on Faraday's law of mutual induction.
The basic working principle of electrical generator is Faraday's law of electromagnetic
induction.
The Induction cooker is a fastest way of cooking. It also works
on principle of mutual
induction. When current flows through the coil of copper wire placed below a cooking
container, it produces a changing magnetic field. This alternating or changing magnetic
field induces an emf and hence the current in the conductive container, and we know
that flow of current always produces heat in it.
Electromagnetic Flow Meter is used to measure velocity of certain fluids. When
a magnetic field is applied to electrically insulated pipe in
which conducting fluids are
flowing, then according to Faraday's law, an electromotive force is induced in it. This
induced emf is proportional to velocity of fluid flowing.
Form the bases of Electromagnetic theory; Faraday's idea of lines of force is used in well
known Maxwell's equations. According to Faraday's law, change in magnetic field gives
rise to change in electric field and the converse of this is used in Maxwell's equations.
It is also used in musical instruments like electric guitar, electric violin etc.
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