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Best Study Notes » Physics XII
Class XII - Physics videos
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Elements of a Communication System 2
Best Coaching Class Notes by admin (#1) 400 days ago (http://www.youtube.com)
Communication refers to sending,
receiving and processing of information electronically. Communication can be either one point to one point or it can be from one point to many points. In the second case, it is called as broadcast communication. For communication purposes, only a part of the electromagnetic
waves like radio waves and microwaves are being used.
receiving and processing of information electronically. Communication can be either one point to one point or it can be from one point to many points. In the second case, it is called as broadcast communication. For communication purposes, only a part of the electromagnetic
waves like radio waves and microwaves are being used.
Elements of a Communication System
Best Coaching Class Notes by admin (#1) 400 days ago (http://www.youtube.com)
Communication refers to sending,
receiving and processing of information electronically. Communication can be either one point to one point or it can be from one point to many points. In the second case, it is called as broadcast communication. For communication purposes, only a part of the electromagnetic
waves like radio waves and microwaves are being used.
receiving and processing of information electronically. Communication can be either one point to one point or it can be from one point to many points. In the second case, it is called as broadcast communication. For communication purposes, only a part of the electromagnetic
waves like radio waves and microwaves are being used.
Astronomical Telescope - Reflecting and Refracting
Best Coaching Class Notes by admin (#1) 400 days ago (http://www.youtube.com)
There are two basic types of astronomical telescope – the refractor telescope and the reflector telescope. The Refractor astronomical telescope has two positive convex lenses - the primary lens is the one that first collects light and forms the image of a distant object at its focal length. The second lens is the eyepiece.
In the Reflector Telescope, a single or a combination of curved mirrors i
In the Reflector Telescope, a single or a combination of curved mirrors i
What is Polarisation
Best Coaching Class Notes by admin (#1) 400 days ago (http://www.youtube.com)
Polarisation is a characteristic of certain types of waves that describes the orientation of their oscillations.
The phenomenon of restricting the vibrations into a particular plane is known as polarisation.
The phenomenon of restricting the vibrations into a particular plane is known as polarisation.
Electromagnetic Waves and their characteristics
Best Coaching Class Notes by admin (#1) 403 days ago (http://www.youtube.com)
Maxwell observed that a variation in electric and magnetic fields perpendicular to each other, produced electromagnetic disturbances in space. These disturbances had the properties of a
wave and propagated through space without any material medium. These waves are called electromagnetic waves. Light, microwaves, x-rays, TV and radio transmissions are all examples of electromagnetic waves. They a
wave and propagated through space without any material medium. These waves are called electromagnetic waves. Light, microwaves, x-rays, TV and radio transmissions are all examples of electromagnetic waves. They a
What Is Eddy Current
Best Coaching Class Notes by admin (#1) 403 days ago (http://www.youtube.com)
Eddy Currents are closed loops of induced current circulating in planes perpendicular to the magnetic flux. They normally travel parallel to the coil's winding and the flow is limited to the area of the inducing magnetic field. This induced current flows in the metal in the form of closed loops resembling ‘eddies’ or whirl pool. Hence this current is called eddy current. The direction of the edd
Circular Current Loop as a Magnetic Dipole
Best Coaching Class Notes by admin (#1) 405 days ago (http://www.youtube.com)
Ampere demonstrated that a simple current loop behaves like a bar magnet and put forward that all the magnetic phenomena is due to circulating electric current. This is Ampere’s hypothesis. Ampere found this observation so obvious that he simply assumed this result.
Faraday's Law
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Michael Faraday explained the possibility of producing emf across the ends of a conductor when the magnetic flux linked with the conductor changes.Faraday's laws of electrolysis are quantitative relationships based on the electrochemical researches published by Michael Faraday in 1834. Whenever there is a change in the magnetic flux linked with a closed circuit an emf is produced. This emf is kno
Biot-Savarts Law
Best Coaching Class Notes by admin (#1) 405 days ago (http://www.youtube.com)
The Biot-Savart Law relates magnetic fields to the currents which are their sources.
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