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EMF induced in an off-axis solenoid due to a rotating magnet
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[QUOTE="kuruman, post: 6231191, member: 192687"] Here is what I had in mind. [ATTACH type="full" alt="DipoleCircle.png"]249394[/ATTACH] The dipole moment rotates in the yz-plane and the sampling circle is in the xz-plane, also the plane of the screen. Within this model, when ##\theta=90^o## the flux through the coil is zero. If you are told that you cannot do it this way, argue that this setup makes sense. The magnetic field depends only on ##r## and ##\theta## and is symmetric about the ##z##-axis. You have already established the dependence on distance when ##r=z##; it makes sense to investigated the angular dependence by changing only the angle and keeping ##r## constant. Furthermore by turning the coil as shown in the figure, you maximize the magnetic flux through it. Moving the coil along the x-axis changes both ##r## and ##\theta## at the same time which makes it harder to sort out which change is responsible for changing the voltage. The idea behind experimental design is to keep it simple, simple to perform and simple to analyze. [/QUOTE]
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EMF induced in an off-axis solenoid due to a rotating magnet
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