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What exactly is a short circuit? - Electrical Engineering Stack Exchange A short circuit may be in a direct- or alternating-current (DC or AC) circuit If it is a battery that is shorted, the battery will be discharged very quickly and will heat up due to the high current flow Short circuits can produce very high temperatures due to the high power dissipation in the circuit
What exactly happens at short circuit? - Electrical Engineering Stack . . . A short circuit is, generally, just an unwanted connection between two or more points in a circuits, permitting current to take a shorter path than the deisgner intended If a short circuit occurs between two signal lines, it probably won't cause a large current to flow, but it will prevent the circuit from operating correctly
Two short circuits - Electrical Engineering Stack Exchange don't worry about short circuit it just means two nodes have same potential and if short circuit is in parallel with any resistance (or in general any impedence ) it makes that element redundent as current follows least resistance path for your particular question follow following steps
Understanding resistance in open and short circuits for an ideal short-circuit, the voltage across the short-circuit is 0V for any value of current through; In other words, an ideal short-circuit is essentially indistinguishable from a 0V ideal voltage source Thus, one might approach problem (c) by redrawing as follows: simulate this circuit – Schematic created using CircuitLab
Isolation transformers and short circuits - Electrical Engineering . . . THEN the short current mAY be limited by the transformer You would need to know how the transformer "looked" up stream with a short applied downstream A possible problem is if the breaker of the equipment under test has a trip rating too close to the transformer's downstream maximum short current
What kinds of short circuit detection circuits are possible? (try different short circuits at Learn About Electornics) Then we usually measure the current at the power supply location, and the limit will be set for the total load of the circuit If the current increases past the total load, then something is wrong, we won't know what, but we can stop the electrons supply or limit them to the maximum allowed
resistance - Why can a shorted resistor be ignored? - Electrical . . . Think everything you have on the circuit a resistor even the wires to connect different component In ideal condition the resistance of a wire is 0 Ohm We make short circuits with wires Therefore the resistance of the short circuit is 0 Ohm Now if you calculate equivalent resistance of the 20 Ohm and 0 Ohm resistor then you get 0 Ohm
current - Will the short circuit damage electronic components or just . . . Short circuits will take take higher inrush current, that would generate EMI that would harm nearby components Short circuit will lead power MOSFET Transistor to thermally run away from its operating point and suddenly breakdown Such a situation will generate reverse spikes (Don't know why, but I read this somewhere )
voltage - Open and Short Circuit questions - Electrical Engineering . . . You are right about open circuit, the wires are disconnected In case of short circuit as well as closed circuit, the wires ARE connected but the difference is that in case of short circuit, the resistance between the connection is extremely low so very high current flows as per ohm's law, whereas in case of close circuit, the connection offers considerable resistance, hence no high current issue
Can a short circuit in the output of a transformer be dangerous? If you short the output of a good efficient transformer, the secondary current will be very high, and the transformer will likely overheat and be damaged However, there are intentionally lossy ("impedance protected") transformers that will limit the load current to a safe value to prevent damage to the transformer in case of short circuits or