raalst wrote:you are right about half the voltage, double the amps.
because volt x amp = watts (power).
But this goes for the same motor. and the trick
is to force the current through the motor.
Motors can differ, e.g. in wire thickness, number of
magnetic "spokes" on the axle etc.
Those variations cause the motors to have varying
resistance. worse, the magnetics cause the motor
to have varying resistance during revolution.
a stalled motor will be equivalent to the wire it is made of
(i,e, a short) while the motor can have a far higher
resistance while rotating, because of the creation and
destruction of magnetic fields.
Resistance is what limits the amount of current
through the motor for a given voltage.
up the voltage, and more current will flow,
giving more power output.
hope this helps !
Say we have a motor thats supposed to run on 8.4v. The standard battery pack is rated 8.4v - 600mah.
If we change this battery to 8.4v - 3000mah, will the motor's RPM increase and if why?
bo@ti wrote:Can anybody, explain why the amp doesn`t have anything to do with the rpm?
Im on an Norwegian board, and 2 idiots keep saying that they have tested it and they know, by listening, or watching the motor, that amp DOES raise the rpm.
I even filmed the darn thing. But no response
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