Category: Lectures on physics
-
Compton effect, Quantum Lecture 3.
As we have mentioned earlier, we would be discussing a few experiments that elucidates the nature of the new theory based on the ideas of quantization and wave-particle duality. This lecture will be an addition to the phenomenon of photoelectric effect that we discussed in our last lecture, as an example of how a classical…
-
Photoelectric Effect, Quantum Lecture 2.
In 1886-89, (at the age 29-31, and deceased barely at the age 36) Heinrich Rudolf Hertz, a German physicist, performed experiments in which he conclusively established the existence of electromagnetic waves, proposed by the theoretical works of James Clerk Maxwell, a Scottish scientist who unfortunately did not live to see this. Maxwell lived only for…
-
Black body radiation, Quantum Lecture 1.
This article belongs to a group of lectures I intend to prepare for their online dissemination — no hand written notes of the same is available as I did not deliver these lectures, its an attempt at on-the-fly preparation of the concepts, exclusively available at this website. This series is on quantum mechanics and bears…
-
Feedback Amplifiers, Lecture-XXVIII, XXIX.
We have reached our final lectures of this series. (Counting the complimentary lecture of Norton’s and Thevenin’s theorem this takes the number of lectures to 30). Some more lectures could have been delivered in the class room but the terrain wasn’t quite welcoming for that ambition/requirement. When priorities are available (which could be years in…
-
Classification of power amplifiers: class A, B, C amplifiers, Lectures – XXVI, XXVII.
Electronic systems need voltage amplification followed by power amplification. It is the voltage of output after signal is amplified to higher voltage level which drives the power amplifier. Transistor of high β (corresponds to thin base) is used for voltage amplifiers. But small β (which corresponds to thick base) are used in power amplifiers. According…
M Dash Foundation: C Cube Learning 