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I'm on a physics excercise where it says i have to show that two powers are equal:
the rate at which gravitational energy is lost
and the electrical power dissipation
in a circuit which is falling trough the gravitational field and a magnetic field which is inducting current in the curcuit (has a resistance causing the dissipation).
Well not going into those details, how can i by simply saying that the forces are equal, the gravitational force and the "force due to the rod" (F=IlB) then the power is equal too?
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never mind
P=F(gravity)v
P=e*I=Blv*I=F(rod)v
