the following paragraph from the book The Meaning of Quantum Theory, Jim Baggott, Oxford University Press, 1992 p26 leads me to this question. consider N ("independently interacting") particles with 3N coordinates x,y,z in space. the quantum wavefunction is expressed in terms of (a superposition ...

I know that tensors are object we use in general relativity to describe phenomenon. They have the property to have the same expression in various coordinates systems. For example if I take : $\partial_{x_i} A_{j} - \partial_{x_j} A_i$ it is a tensor because if I change the system of coordinates ...

Calculate the current between points $A$ and $B$, where $$R_1 = 3\Omega$$ $$R_2 = 6\Omega$$ $$R_3 = R_4 = 4\Omega$$. Battery emf. Is 12 V. Neglect the internal resistance of the battery. Please see the photo: My attempt to solve it: I am stuck here should i add the two resultant resistanc...

You may have read my meta post Discussion groups to assist those self-studying or enrolled students (if you haven't, you probably should, though a quick summary is provided below). Again, this idea grew out of the idea of a "MSE University" but it is not that, so please keep an open mind. So, ...