From Quantity to Quality: Redefining Institutional Approaches to Research Publication
Sushil K
Modifification of Ampere’s Circuital Law, Displacement Current
This lecture includes the formulation for the modified Ampere’s Circuital Law. 1. Part From the continuity equation, we have seen that if the nature of current is DC, then divergence of the current density j is zero. It means the magnitude of the current is constant at both the end (solenoidal condition). 2. Ampers’s law: ...
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How to find magnetic force on a current carrying conductor
Magnetic Force on a Current Carrying Conductor When charged moving particles are placed in a magnetic field, they experience a magnetic force given by the Lorentz force equation. This states that the magnetic force felt by a charged particle is equal to the product of the charge of the particle, the velocity of the particle ...
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How to study Cyclotron for class 12 physics part-3
It is a device developed by Lawrence and Livingstone and is used to accelerate charged particles like protons and deuterons. This results in the production of high energy beam which is then used for artificial disintegration, etc. It consists of two D shaped metal boxes (about 21″ in diameter) with their straight sides facing each ...
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Cyclotron Class 12 | How to study physics | part-4
The cyclotron class 12 topic is a part of this post. It is a device developed by Lawrence and Livingstone and is used to accelerate charged particles like protons and deuterons. This results in the production of a high energy beam which is then used for artificial disintegration, etc. Cyclotron Class 12 Introduction It consists ...
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Classification of Optical Fibers, Step and Graded Index Optical Fibers-apniPhysics
There are two types of OPTICAL FIBERS depending on the refractive index of core and cladding are available ; a. Step Index Optical Fiber b. Graded Index Optical Fiber In step-index optical fiber the core and cladding have a uniform refractive index. In the step index optical fibers the rays entering at different angles travel ...
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Attenuation in Optical Fiber-A Numerical Problem
Attenuation in Optical Fiber The major transmission characteristics for an optical fiber: 1. Attenuation 2. Dispersion Attenuation: Signal attenuation (fiber dB loss explained) within the optical fibers, as with metallic conductors, is usually expressed in the logarithmic unit of the decibel. The decibel, which is used for comparing two power levels, may be defined for a ...
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How to Find LASER Wavelength Using a Diffraction Grating in the Physics Lab
Using a Diffraction Grating experiment in the Physics Lab, how to determine LASER (Light Amplification by Stimulated Emission of Radiation) wavelength . For this just take a LASER source, a grating (here grating have 15000 lines per inch), and a screen to observe the diffraction pattern. Set-up Diffraction Grating Experiment in Physics Lab Procedure for ...
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He-Ne gas Laser: Its Principle, Construction and Working
Introduction He-Ne LASER The Helium-Neon laser was the first continuous laser. It was invented by Javan et. al. in 1961. But how did Javan manage to do this? This shows that it is no coincidence that Javan’s first He-Ne laser oscillated at a Wavelength of 1.5 μm since the amplification at this wavelength is considerably ...
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Carbon dioxide (CO2) gas Laser
Carbon dioxide (CO2) gas Laser The carbon dioxide laser (CO2 laser) was one of the earliest gas lasers invented by Kumar Patel of Bell Labs in 1964, is one of the most useful. Carbon dioxide gas lasers are the highest-power continuous wave lasers that are currently available. They are also quite efficient: the ratio of ...
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