Thread: Solar for kayak
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Old 07-03-2013, 08:04 AM   #1
jruiz
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Join Date: Jul 2012
Location: La Verne, CA
Posts: 1,011
Quote:
Originally Posted by alanw View Post
That just doesn't sound right according to Ohm's Law.

V = I * R

Voltage = Current * Resistance


The resistance of the motor is a constant, so the only things that can change is volts and current which means that as voltage goes down so does current.

That means that a 6 volt 10 amp battery should last longer than a 12 volt 10 amp battery.

Motors aren't resistors.
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