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Imagine a negatively charged conducting sphere placed in vacuum. Now all the negative charge must be at the surface. Any electron present at the surface of conductor will experience a...
Asked on 05/19/2021
1 answerIs it possible to write all Maxwell's equations only in terms of $vec{E}$ (without $vec{B}$)? The common formulation of Electromagnetism is governed by the equations below: The Lorentz...
Asked on 05/19/2021
1 answerI solved a question in electricity using the Gauss law, but comparing with others revealed the possibility that my answer is incorrect. We have a Sphere with radius $R$...
Asked on 05/19/2021 by snatchysquid
1 answerIf time moves more slowly on Earth (due to our proximity to a gravitational body) than for someone orbiting Earth in a spaceship, yet the opposite occurs in the frequently...
Asked on 05/19/2021 by John 09
3 answerThe AdS/CFT correspondence can explain superconductors in a holographic way, using bulk gravity with a black hole in the background and a scalar field which, under suitable conditions, acquires a...
Asked on 05/19/2021 by PPIP
0 answerSuppose that current and new forthcoming dark matter direct detection experiments find no evidence of Dark matter events and exclude interactions of hypothetical DM particles (like LSP or similar) in...
Asked on 05/19/2021
2 answerWe know that we can obtain AdS$_2times S^2$ by considering the near horizon limit of extremal RN black holes in $4d$ with various asymptotics, i.e., either Minkowski$_4$,...
Asked on 05/19/2021
1 answerTo calculate the electric field for the system where a point charge is placed at a distance d from a semi-infinite dielectric medium (eg. http://farside.ph.utexas.edu/teaching/jk1/lectures/node42.html), we use...
Asked on 05/19/2021 by YYing
2 answerWe know that Fermilab, Brookhaven, and other laboratories have found discrepancies with the SM.One option that almost immediately comes to mind is that the so-far exact conservation law of...
Asked on 05/19/2021 by joigus
1 answerI am Section 3.9 in Sakurai's Modern QM, 3rd ed (which is Section 3.8 in 2nd ed.) I am trying to obtain the given form for $hat D(R)|jmrangle$:...
Asked on 05/19/2021
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