Isn't a short circuit just a parallel circuit with one path having very low resistance? Shouldn't both paths still have the same voltage across them? So why does all the current go through the short while the rest of the circuit goes dark (at least this is my understanding of shorts). You might say that it's because the short has super low resistance and real power sources have physical limitations, but for example: in a NOT gate there are two resistors that prevent the transistor (junction transistor) from getting overwhelmed, and the current remains at a reasonable value. In my mind this clearly creates a parallel circuit, yet the current only flows through one path depending on the input. Why?
closed as unclear what you're asking by CuriousOne, ACuriousMind♦, Norbert Schuch, user36790, Kyle Kanos Feb 27 '16 at 23:39
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A not gate (inverter) is not designed as you describe. The input does not short circuit to ground, it only acts as the Gate to the transistors. The not gate is attached to input, output, Vcc and GND. There are 2 opposite transistors between Vcc and GND. At any time one transistor is high resistance and the other is low resistance. So there is always resistance between Vcc and GND. It's just a matter of whether the transistor "above" the output is most of the resistance or the transistor "below" the output is most of the resistance. Low and High output respectively.