2007-02-05 14:33:50 · 3 answers · asked by Vman 1 in Science & Mathematics ➔ Engineering
by defination short circuit = 0 resistance. V=IR, R=0, therefore V=0
If there is Voltage drop, I = V/R =V/0 = infinity, which is impossible.
2007-02-05 14:38:27 · answer #1 · answered by cajun_guy17 1 · 1⤊ 0⤋
By one definition, there's zero voltage drop. But for all practical purposes, yes, there is a voltage drop. If you measure the voltage between your car battery and the engine block, you can measure a voltage while you're cranking the starter. But we don't consider that a short.
A short is usually an unintentional conduction path. If a wire's insulation was rubbed through, and connected to another metal conductor, that would be a short circuit. Since there is no such thing as zero resistance (unless we're dealing with superconductors), you will be able to measure a voltage drop.
Other times, we intentionally short things together for an experiment, even though we wouldn't design a circuit like that. I could say "short those two terminals together." I would still consider that a short circuit even though it was intentional.
2007-02-05 23:56:27 · answer #2 · answered by vrrJT3 6 · 2⤊ 0⤋
No - it would be similar to measuring for a voltage drop across a straight piece of conductor with zero Ohms resistance in the circuit.
2007-02-05 22:42:24 · answer #3 · answered by LeAnne 7 · 1⤊ 0⤋