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The definition of parallel transport is $t^iD_i u^j=0$, where $vec{t}$ is the tangent vector to the curve and $vec{u}$ is the vector being parallel transported along the...
Asked on 02/20/2021 by lol
2 answerIf cells are connected in series with positive terminal of one cell with negative terminal of other cell what is the potential difference between those two terminals..? Is that not...
Asked on 02/20/2021
0 answerIn Planck derivation of black body radiation. Planck hypothesized $E=hnu$ and got the correct black body radiation spectral function. What is confusing me is why doesn't similar arguments work...
Asked on 02/20/2021
0 answerOn page 1 of the book "Principles of Lasers and Optics” by William Chang, the author, speaking about radiation from lasers, says that:For devices with structures that have dimensions very...
Asked on 02/20/2021
1 answerWe can think the charges go to the outer surface of a conductor to minimize the electrostatic potential energy of the system. We can check this using a simple calculation...
Asked on 02/20/2021 by SunLight
3 answerI'm working on a small sensor system that responds to only UV light and I wanted to know that is there any way to differentiate between UV light and the...
Asked on 02/20/2021 by GURU PRASAD A S
2 answerWhat is the Hilbert space of a spinless fermion? Take for instance the following simple example, a 1D free fermion chain:$$H = sum_i^N E_i f_i^{dagger}f_i$$where...
Asked on 02/20/2021
2 answerThe work energy theorem states that the net work on a particle is equal to the change in the kinetic energy of the particle: $$W_{net}=Delta K $$ My first...
Asked on 02/20/2021
2 answerI want to prove that if an object is small in length and lying along the principal axis then $$M = -frac{dv}{du} = -left(frac{v}{u}right)^2$$ Where, $M$ is the...
Asked on 02/20/2021 by user221619
1 answerIn the case of semiconductors the intrinsic charge carrier concentration N, always remains constant. This explains the decrease in number of holes when donor impurities are added to an intrinsic...
Asked on 02/20/2021 by danny gotze
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