What is a short circuit?

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I dont know what it actually is ‼️

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9 Answers

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Think of a hypothetical water wheel fed by a pump in a continuing loop. Let’s say the pump can handle water coming in on its intake water wheel to pump) pipe at a max pressure of 10 PSI. It pumps water down the outflow (pump to wheel) pipe towards the water wheel at a pressure of 15 PSI, since it’s got to push that big water wheel. Once the water goes past the wheel, it’s been reduced in pressure to 8 PSI and so returns to the pump below the max pressure of 10 PSI.

Now imagine you dig a channel between the outflow and intake pipes so it bypasses the water wheel and water flows straight from the pump’s outflow to its intake. There no load (the water wheel) between the two paths, so the water hits the pump’s intake at the full pressure of 15 PSI and the pump itself bursts, spilling water everywhere.

Similarly an electric system is designed with a load in between the two poles of the system to use up some of the energy in the circuit. If you bypass that load, the full electrical energy of the circuit is being dumped into pathways that aren’t meant to handle it and they overheat and burn up. Or the electrical demand is too much for the power source to supply and it burns up.

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