Notes On Polarization

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ELECTRIC FIELD AND LIGHTNING

1. What is polarization?
Answer:
Polarization is a property of waves that can oscillate with more than one orientation. It is sometimes called wave polarization is a countenance of the orientation of the lines of electric flux in an electromagnetic field. Electromagnetic waves such as light show polarization, as do some other types of wave, for example gravitational waves. Sound waves in a gas or liquid do not demonstrate polarization, as the oscillation is always in the direction the wave travels. Polarization can be constant i.e. existing in a specific orientation continuously, or it can rotate with each wave cycle.
Polarization is the essential parameter in areas of science related with transverse wave propagation, such as seismology, optics, microwaves, and radio. Specially impacted are technologies such as wireless and …show more content…

The air may not ionize equally in all directions. Dust or impurities in the air may cause the air to break down more easily in one direction, giving a better chance that the step leader will reach the earth faster in that direction.

APPLICATIONS OF INDUCTION

1. How does an AC generator utilizes Faraday’s law?
Answer:
Electromagnetic induction is an exceptionally useful phenomenon with an extensive range of applications. An AC (alternating current) generator utilizes Faraday's law of induction, such that inducing an oscillating emf by spinning a coil at a constant rate in a magnetic field. The magnetic field and the coil area are kept constant, so, by Faraday's law, the induced emf is given by:

2. What is the mutual inductance?
Answer:
Mutual Induction is the phenomenon in which variation of current in one coil causes an induced emf in another coil placed near to the first coil. The coil in which current is altered is called primary coil and the coil in which emf is induced is called secondary

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