Does a moving magnetic field generate a current?

AI Thread Summary
A moving magnetic field can indeed generate a current in a wire, as demonstrated by the principles of electromagnetic induction. Specifically, moving a magnet beneath a circular wire can induce a current, similar to how a wire moving through a magnetic field generates electricity. This principle is utilized in various applications, including Hi-Fi audio equipment with moving magnet and moving coil pickups. The discussion clarifies that the orientation and movement of the magnet relative to the wire are crucial for current generation. Understanding these concepts is essential for projects involving electromagnetic induction.
HumanDrew
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Hey! Not sure if this is a stupid question or not but I was wondering if a moving magnetic field could generate a current in a wire. I know that moving a wire through a magnetic field creates a current but what if you move around a magnet underneath a circular wire. Does that generate a current?
 
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Yes (if you are into Hi-Fi, you will know that there are both moving magnet and moving coil pickups).
 
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Thanks for the answer Svein! I was just wondering because I wanted to do a science project that is reliant on creating a current in a wire with a moving magnet.
 
Actually to clarify my question a little better, I'm not specifically talking about something like a solenoid, where a magnet goes through a coil of wire. Instead would current be generated if there was a circular loop of wire parallel to the ground and a magnet moving left and right underneath this wire.
 
I was using the Smith chart to determine the input impedance of a transmission line that has a reflection from the load. One can do this if one knows the characteristic impedance Zo, the degree of mismatch of the load ZL and the length of the transmission line in wavelengths. However, my question is: Consider the input impedance of a wave which appears back at the source after reflection from the load and has traveled for some fraction of a wavelength. The impedance of this wave as it...
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