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You don't really control amps directly. The two easy variables are voltage and resistance. So if you DC source produces a constant voltage, you're going to have to vary the amount of resistance in your circuit to control the amps. The relationship is as follows.

V = I * R

So if you want to more amps for a given voltage, lower the resistance. The extreme would be to short circuit the volt source (simply connect a wire between the voltage terminals), this allow a lot of current to flow throw your circuit.

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16y ago

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