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I have searched PSE (and many other sites on internet) for the theoretical reason of induced emf. All I got was that the phenomenon of Induced EMF is experimental fact...
Asked on 12/06/2020
1 answerI'm trying to investigate how the frequency of the alternating current in the solenoid affects the ring motion for a Thomson Jumping Ring apparatus. I have a variable frequency AC...
Asked on 12/06/2020 by Teresa
1 answerIn depictions of the double-slit experiment that model the photon or electron as a particle, i.e. when attempting to measure which slit the particle passes through, it always shows the...
Asked on 12/06/2020 by Andrew Cheong
5 answerI know that an electron gun releases electrons by thermionic emission and accelerate the electron through charged plates, and that the electrons are not gaining any energy after they leave...
Asked on 12/06/2020
1 answerI'm struggling to understand how to calculate the force exerted on an uncharged particle in a magnetic field. Consider the following setup: a ball of ferromagnetic iron weighing 1kg is...
Asked on 12/06/2020 by Dubukay
3 answerSuppose we have some field theory on a curved background, and the metric tensor $g_{mu nu} (x)$ is a smooth function of the position. For simplicity, let's consider a...
Asked on 12/06/2020
1 answerI don't understand how a particle can exist with negative kinetic energy.Consider this scenario: Here, an electron is...
Asked on 12/06/2020 by Shreyas Pradhan
1 answerI'm trying to write the heat transfer equation in an arbitrary fluid (compressible and viscous). Consider an adiabatic system where the only heat generated is due to the internal friction/viscosity....
Asked on 12/06/2020 by Foad
1 answerMy physics textbook says that : A fluid will stick to a surface if the surface energy between fluid and solid is smaller than the sum of surface energies between...
Asked on 12/06/2020 by swapnil gangwar
2 answerLet's consider a 2D-square with 4 equal subsquares containing different dielectrics. Inside the square domain, the unknown electric potential function $Phi$ satisfies the Laplace equation: $$nabla^2Phi=0$$...
Asked on 12/06/2020 by Ming Yang
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