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What else can I help you with?
You all know that current can't flow if there is an open circuit. My question is how electrons know without flowing that there is an open circuit and we should not flow?
It's not that they "know" there is an open circuit. It's that they can't flow. Imagine a hose with water in it. If you pinch the hose, water can't flow any more. An open circuit is like a pinched hose.
Why current flow in the opposite direction of flowing electron?
Electrons do not flow, but they might be though of as 'flowing' as they transfer charges between them. The reason that electron flow is the opposite direction from current is that historical theories of electrical flow (current) treated it as a movement of positive charges rather than negative charges.There is no actual difference that could be discerned, except that we now know that negative charges (electrons) constitute the basis of most common electricity.
If a series circuit has a 12 v battery what is the current flow?
You'd need to know either the resistance or the wattage of the circuit. Ohm's Law: Current = Voltage divided by resistance or Current = Power divided by Voltage
What is ampere trip?
An ampere trip is a protection feature in an electrical circuit breaker that automatically shuts off the flow of electricity when the current exceeds a certain level, typically to prevent overheating or damage to the circuit. When the amperage reaches a specified threshold, the circuit breaker trips to interrupt the current flow and protect the circuit from potential hazards.
How do you know which direction current flows in?
We always visualize, and assume, current to be flowing from the positive terminal of the power supply or battery to the negative terminal, through the conducting path provided by everything that's connected between them. In reality, though, the thing that's doing the actual physical flowing is huge numbers of electrons, which happen to carry negative charge. So the actual physical flow is in the opposite direction.
Why do the resistance is zero in case of short circuit?
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
Does a current always follow a closed circuit?
Yes, a current requires a closed circuit to flow. Without a closed path for the electrons to travel through, the current cannot be established. The circuit provides the complete loop necessary for the flow of electrons.
What is the conventional direction of electric current?
from the more positive point to the less positive point in the circuit
What does a current flow of electrons need?
Your question is not clear. A current is generated when a group of electrons flow through a conductor, and this happens when there is a potential difference between the 2 ends of the conductor. If you want to know how can we start the flow of electrons it is by creating a potential difference in between the 2 ends of the conductor.
What is the maximum current that can flow through a fuse?
A current rating of a fuse is designed to open a circuit at a specific current flow. This rating is imprinted on the fuse and lets you know what the maximum amount of current the fuse is designed to open at. A fuse is in the circuit to protect the conductor that the current flows through. Never over fuse a conductor's current carrying capacity.
In a series circuit what happens to the current if you increase the number of components in the circuit?
The current (amps) will remain constant, but the voltage will drop.
How resistor function in producing passiveness in closed circuit?
We know definition of Resistance, that resistor always opposes to flow of current. resistor should have input signals from source , so it generates passivity in circuit
