Anything with the property of zero electrical resistance is called a super-conductor.
There are special materials called superconductors that exhibit zero electrical resistance, but this commonly requires cooling to very low temperatures.
It has no (zero) resistance - thus current flows without losses.
Those are the so-called "superconductors" (there are several types), which have ZERO electrical resistance.
A superconductor truly has zero electrical resistance.It took scientists a half century to explain why, so this answer will omit the explanation of the effect.
A superconductor has zero electrical resistivity below a specific temperature called the superconducting transition temperature.
The so-called "superconductors" have no electrical resistance.It's not just very low. It's precisely zero, such that a current cancirculate in a loop of superconducting material for months withoutvoltage and without any change in its magnitude.
If you mean zero electrical resistance for an electromagnet, this is possible with superconductivity. This can be achieved for certain materials at fairly low temperatures - typically a few kelvin.
It means you have effectively no resistance to current flow. Whether this is good or not depends on whether you WANT resistance to current flow. If you're testing a length of wire, a cable, or something like that, having your ohmmeter read zero would be good. If you're testing a motor or something else that needs to have resistance to work, having your ohmmeter read zero is bad and is called a Short Circuit.
A superconductor. It has zero resistance, and therefore zero resistivity.A superconductor. It has zero resistance, and therefore zero resistivity.A superconductor. It has zero resistance, and therefore zero resistivity.A superconductor. It has zero resistance, and therefore zero resistivity.
Superconductivity is an event where there is zero electrical resistance and expulsion of magnetic energy when materials are cooled.
A superconductor is a material that has zero electrical resistance.
That will depend on the temperature coefficient of resistance of the device, which could be positive (i.e. resistance increases with increasing temperature), negative (i.e. resistance decreases with increasing temperature), or zero (i.e. resistance is unaffected by temperature changes).
Yes, a superconductor has zero resistance.
Silver and gold both have low resistances. Superconductors have zero electrical resistance. People with acquired immune deficiency syndrome (AIDS) also have low resistance to infection. Many women have a low resistance to my charming and magnetic personality.
An ideal superconductor has exactly zero losses, thus resistance is zero.
An example of a superconductor is mercury. Superconductivity is an element's ability to have no electrical resistance when cooled to temperatures close to absolute zero.
Something very close to zero. Only a superconductor will read zero resistance. ANSWER: Actually that is the first step to use when reading resistance to certify that the meter is indeed is calibrated since it will read zero. The reading will change due to the internal battery degradation with time by adjusting to zero reading that guarantee to a correct reading of resistance
Time constant in an RC filter is resistance times capacitance. With ideal components, if the resistance is zero, then the time constant is zero, not mattter what the capacitance is. In a practical circuit, there is always some resistance in the conductors and in the capacitor so, if the resistance is (close to) zero, the time constant will be (close to) zero.
In most cases, physics deals with finite quantities rather than zero, but zero does come up at times. The start of an event can be measured as zero hour. A superconductor has zero electrical resistance. There are doubtlessly other cases as well. Zero is a useful concept.
zero is low 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 ()
A short circuit is a circuit in which the connecting wires have different resistances.The electrons tend to flow from the shortest route through the wires which have the lowest resistance. Since the voltage is more than the resistance of the wire can control, the current flows very fast throgh the wires and heating the low resistance wires and eventually burning them up. This can be explained mathematically using Ohm's Law. Ohm's Law describe the relation between electrical current, electrical potential difference(i.e. voltage), and electrical resistance, and is depicted as such: V = I x R where V = electrical potential difference (volts) I = electrical current (amperes) R = electrical resistance (ohms) When solving this equation for electrical current (I), we get the following I = V/R Since in a short circuit the resistance (R) in the circuit approches zero (0), that creates a situation where the current (I) goes to infinity for a given electrical potential difference (V). See http://en.wikipedia.org/wiki/Divide_by_zero for more information on dividing by zero.