Short version: Yes. That’s a short circuit. Typically you get current as long as it has a path with finite resistance (even zero), voltage difference, and a supply of charge carriers (e.g. electrons). … But if it’s just the wire, you can’t ignore its resistance.
Can current flow without resistance?
Short version: Yes. That’s a short circuit. Typically you get current as long as it has a path with finite resistance (even zero), voltage difference, and a supply of charge carriers (e.g. electrons).
Does the resistor conduct electricity?
This equation, i = v/r, tells us that the current i flowing in a circuit is directly proportional to the voltage v and inversely proportional to the resistance r. In other words, if we increase the voltage, the current will increase. But if we increase the resistance, the current will decrease.
What happens when the resistance is at 0?
In the context of any two terminals of a circuit: A short circuit implies that the two terminals are connected externally with a resistance R=0, like an ideal wire. … This means that no current can flow between the two terminals regardless of the voltage difference.
Is resistance needed for current?
It is the voltage that is present due to the current. To answer your question, the resistor isn’t required to conduct electricity, but it is required if you want to have an electrical voltage across your component.
Can current flow without resistance?
The resistor prevents current from flowing. When there is no resistance, as in some types of short circuits, current flows through the wire without losses. The basic rule is Ohm’s law: if is not zero and equal to zero, then the current is infinite.
How do you find the current when there is no resistance?
Ideally, when there is no resistance, i.e. a short circuit is connected across a DC source, an infinite current flows as I = V/R and R = 0.
Does the resistor conduct electricity?
This equation, i = v/r, tells us that the current i flowing in a circuit is directly proportional to the voltage v and inversely proportional to the resistance r. In other words, if we increase the voltage, the current will increase. But if we increase the resistance, the current will decrease.
Can there be no resistance in a circuit?
Definition. A short circuit is an abnormal connection between two nodes in a circuit that are said to have different voltages. … In an ideal short circuit, this means that there is no resistance at the connection and therefore no voltage drop. In real circuits, there is an almost resistance-free connection.
Does current flow without resistance?
Short version: Yes. That’s a short circuit. Typically you get current as long as it has a path with finite resistance (even zero), voltage difference, and a supply of charge carriers (e.g. electrons).
How does resistance affect current?
Current is directly proportional to voltage and inversely proportional to resistance. This means that an increase in voltage will result in an increase in current, while an increase in resistance will result in a decrease in current.
What makes the current flow?
In electrical conductors, electricity (flux) is created by the movement of electrons from one atom to another. … Negative electrons are attracted to positive electrons. At the atomic level, a negative electron jumps from atom to atom. 04
