I have to mathematically model a metal rod moving inside a coil. When I move the rod through the field, the emf is induced between the ends of the rod causing current to flow. This will recharge a large capacitor able to supply the necessary current to a resistive load. Can somebody help me out to design the components of this system (using formulas if possible) in order to recharge a capacitor of 47mF with 3V? Any help is really appreciated. Nick
Try these on for size:
Or crack open a decent Physics text.
Surely you mean a MAGNET moving inside a coil, instead of just "a metal rod moving inside a coil"?
Michael
the voltage on a capacitor is.
1 farad * 1 amp * 1 second = 1 volt. C * I * T = EBob
Rather unclear. Is that rod magnetic? How is that (magnetic?) field produced? Current thru the coil or magnetized rod? So thenyou say an emf is produced causing a current to flow; only momentary and thus creating (a momentary) a voltage potential between the rod ends - - but wait - - is ther something connected to them? Cannot say the capacitor, as it is possible the magnetized rod induced a current in the coil to charge the capacitor. And where did that 3V come from?
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