0
The current is 0. Current is the unit of flow of electrons in a circuit, and in an open circuit, electrons cannot flow. Therefore there is 0 current.
Another way to look at it is that I = V / R, where I = Amps (current), V = voltage, and R = resistance (impedance). In an open circuit, the impedance is infinite, and by using our math skills, we know that X (or V in our case) divided by infinity, is 0.
I = V / Infinity = 0
What else can I help you with?
What happens to the total resistance in a parallel circuit with a short?
In case of parallel circuit the effective resistance is given by Reff = R1*R2*R3 /(R1R2 +R2R3 +R3R1) As short circuit takes place then anyone R1,R2,R3 becomes zero. Hence Reff becomes zero.
In the simplest of dc circuits where the resistance is zero what kind of circuit is it?
A short circuit.
Will voltage or current be higher in a circuit during short circuit?
Since a short circuit is, essentially, a zero impedance connection between nodes, the current in a short circuit is limited only by the ability of the source. In the case of an ideal voltage source connected to an ideal short circuit, you would have infinite amperes.
Normally a high current flows through a short circuit even if there is no change to the voltage. Why is this?
A high current flows through a short circuit even if there is no voltage change because the resistance across the short circuit is zero.
Does the current generates if there is no resistance in the circuit?
You can have current without resistance. You would just have zero voltage drop across that zero resistance.However, the question is very interesting, because if you really had zero resistance in the entire circuit, it would be impossible to have any voltage at all without generating an infinite current, so the answer in the theoretical case is no, you can have no current, nor voltage, if there is no resistance at any point in the circuit.
In the simplest of dc circuits where the resistance is zero what kind of circuit is it?
A short circuit.
What happens to the total resistance in a parallel circuit with a short?
In case of parallel circuit the effective resistance is given by Reff = R1*R2*R3 /(R1R2 +R2R3 +R3R1) As short circuit takes place then anyone R1,R2,R3 becomes zero. Hence Reff becomes zero.
Will voltage or current be higher in a circuit during short circuit?
Since a short circuit is, essentially, a zero impedance connection between nodes, the current in a short circuit is limited only by the ability of the source. In the case of an ideal voltage source connected to an ideal short circuit, you would have infinite amperes.
The value of resistance of an short circuit?
The value of resistance when there is a short circuit varies depending on the nature of the fault, but it could be fractionally above zero or higher.
How can I test for a short circuit in a circuit?
To test for a short circuit in a circuit, you can use a multimeter set to measure resistance. Disconnect the power source, then place the multimeter probes at different points in the circuit. If the resistance reading is very low or zero, it indicates a short circuit.
What would happen to circuit if there was no resistance?
a circuit with no resistance or zero resistance can be considered as open circuit in which the current is zero. without resistance the circuit just becomes open ()
How does current exist wen voltage is zero in short circuit?
According to Ohm's Law, V = I*R, where V = voltage (volts), I = current (amps), and R = resistance (ohms). Mathematically speaking, when you have a short circuit, resistance is said to be zero, as well as voltage is equal to zero, therefore zero divided by zero is infinity. In a few words, you can't have infinite current but that means current exists in a fairly large quantity in a short circuit which is why equipment burns out with short circuit.
How to test for electric short?
If there is an electric short, the resistance of the circuit would be zero. So you can use an ohm meter to test it.
What is dead short circuit?
A short circuit which offers very low, practically zero, fault resistance is called "dead short circuit". further more it bypasses the entire load current through itself.
Normally a high current flows through a short circuit even if there is no change to the voltage. Why is this?
A high current flows through a short circuit even if there is no voltage change because the resistance across the short circuit is zero.
Does the current generates if there is no resistance in the circuit?
You can have current without resistance. You would just have zero voltage drop across that zero resistance.However, the question is very interesting, because if you really had zero resistance in the entire circuit, it would be impossible to have any voltage at all without generating an infinite current, so the answer in the theoretical case is no, you can have no current, nor voltage, if there is no resistance at any point in the circuit.
How do you find shorts and opens in an electrical circuit in multimeter?
An open circuit essentially has an infinite resistance. It is shown on digital multimeter as OL. (Open Line) A short circuit should read zero, or nearly zero, depending on the accuracy of the meter.
