Electronics Engineering
Electrical Engineering

What is something that has zero electrical resistance called?

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Answered 2012-12-20 10:07:38

A superconductor.

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When cooled this contains almost zero resistance?

Anything with the property of zero electrical resistance is called a super-conductor.

What is a material that has no electrical resistance?

There are special materials called superconductors that exhibit zero electrical resistance, but this commonly requires cooling to very low temperatures.

What does a super conducter do?

It has no (zero) resistance - thus current flows without losses.

Which substance is the best conductor of elictricity?

Those are the so-called "superconductors" (there are several types), which have ZERO electrical resistance.

Do the super conductors have real zero electrical resistance or is it a virtual one?

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.

Does a super conductor have infinite resistance?

A superconductor has zero electrical resistivity below a specific temperature called the superconducting transition temperature.

What is a substance with no electrical resistance?

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.

How are the magnets able to have zero resistance?

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.

When ohmmeter is zero?

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.

Which material has lowest 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.A superconductor. It has zero resistance, and therefore zero resistivity.

What is a superconductor used for?

Superconductivity is an event where there is zero electrical resistance and expulsion of magnetic energy when materials are cooled.

What type of material allows electricity to flow through an unimpeded?

A superconductor is a material that has zero electrical resistance.

What is something that maintains a Zero Potential when you are connecting an electrical circuit?


What happens to its resistance when an electrical device is heated?

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).

Is A superconductor is A conductor having zero resistance?

Yes, a superconductor has zero resistance.

What has a low 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.

What resistance does a superconductor have?

An ideal superconductor has exactly zero losses, thus resistance is zero.

Which is an example of a superconductor?

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.

When a multimeter is set to measure resistance what reading would you except when the probes are touching?

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

What is time constant of capacitor when resistance is zero?

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.

Where is the term zero used in physics?

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.

If a multimeter reads zero on the ohm scale is this high or low resistance?

zero is low resistance

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 ()

What is a short circuit how does it happen and why is it dangerous?

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 for more information on dividing by zero.

Does a conductor have zero resistance?