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Jan
20
comment What happens if a current flows through a wire wrapped around a magnetised material?
The coil is fixed in space, the magnetized cylinder is rotated along with the coil, the total resistance I would assume is R, although the question did not specify.
Jan
19
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Jan
18
accepted What happens if a current flows through a wire wrapped around a magnetised material?
Jan
17
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Jan
13
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Jan
11
asked What happens if a current flows through a wire wrapped around a magnetised material?
Jan
11
accepted How does this approximation of the $B$-field of a charged rotating disk for $z\gg R$ make sense?
Jan
10
asked How does this approximation of the $B$-field of a charged rotating disk for $z\gg R$ make sense?
Jan
7
asked What is the difference between free current and displacement current?
Jan
6
asked How do the voltage rises balance with the voltage drops in this example of a series circuit?
Jan
5
asked How to compute the charge as a function of time in a simple C-L circuit
Dec
30
accepted How do you calculate the back emf?
Dec
30
asked How do you calculate the back emf?
Dec
28
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Dec
21
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Dec
21
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Nov
14
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Nov
4
comment What are the modes of vibration on an oscillating spring?
OK thanks. So with my eigenvector (1,1), the two masses will be moving both right, and then both left, and so on (in SHM?). With my eigenvector (1,-1), the middle spring will be compressed, then stretched, then compressed, and so on. Does this interpretation make sense?
Nov
4
asked What are the modes of vibration on an oscillating spring?
Sep
4
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