Use ohm's law to (in a parallel kind of way) to predict the outcome of a generator

  • Thread starter Rusty69
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I was thinking if the strenght of the permanet magnet could be parallel to I , the rate at which the the magnet (or wire) rotates parallel to V & of course the wire resistance would go with R . If there is some type of way to determine the outcome of a generator before building it, starting it up etc could someone please tell me ? Also am aware the generator would most likely need to be turned on to determine the rate of it's rotation.
 

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  • #2
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Are you asking what the voltage would be based on how fast your rotating your motor in a magnetic field . Voltage is the time derivative of magnetic flux, and the flux would be
ABcos(wt) where A is the cross sectional area of your loop rotating in the B field and
w is the angular frequency of the motor.
so V=-ABwsin(wt)
If that's what your getting at .
 
  • #3
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Well yes that is what am asking, but am also new to electric physic stuff. Based on that as of now I don't really get what you mean but thank's for posting .
 

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