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Anyone from electrical profession and has the proper test equipment and can sign and seal to validate the result. In practice this is assigned to technicains which has specialty in power, relay, metering, etc. testing and commissioning group for installed or existing facilities. The cable and wire manufacturers have reflected all data of their product which include resistances done in their laboaratory or by a certified testing entity.
What else can I help you with?
How does temperature affect resistance of a wire?
If you are asking if a hot wire has a greater resistance than a cold wire then the answer I would say is yes. Cold wires have always had less resistance than hot wires
Would thick wires tend to have the least amount of eletrical resistance?
Yes, the resistance is directly proportional to length of wire and inversely proportional Area, hence when Length of wire increases the resistance also increases and when Area increases the resistance decreases. This means a thick wire has least amount of Electrical resistance.
What on average has the highest electrical resistance value?
The question can't really be answered without some form of limitation on what would be considered a "wire". A nylon rope, for example, has extremely high resistance, but most people wouldn't call it a wire.
The properties of a wire that would create the least resistance to electron flow?
Generally a larger diameter copper wire would create the least resistance to electron flow. Copper is the most conductive and is widely used.
Suppose a wire of resistance R could be stretched uniformly until it was twice its original length. What would happen to its resistance?
Current tends to travel on the surface of the wire. As you decrease the cross-sectional area of a wire the resistance increases. That is why larger wires are rated for higher currents.
How do you ohm out a wire to test its electrical resistance?
To ohm out a wire and test its electrical resistance, you need a multimeter. Set the multimeter to the resistance (ohms) setting. Connect the multimeter's probes to each end of the wire. The multimeter will display the resistance value in ohms, indicating the wire's electrical resistance.
How to test a wire with a multimeter?
To test a wire with a multimeter, set the multimeter to the resistance or continuity setting. Touch one probe to each end of the wire. If the multimeter shows a low resistance or beeps, the wire is continuous and working. If there is high resistance or no beep, the wire may be broken or faulty.
How can I test a wire with a multimeter?
To test a wire with a multimeter, set the multimeter to the resistance or continuity setting. Touch one probe to each end of the wire. If the multimeter shows a low resistance or beeps, the wire is continuous and functioning properly. If there is high resistance or no beep, the wire may be broken or faulty.
What methods would you use to test the resistance of a long and short wire?
To test the resistance of a wire, you can use a multimeter set to the resistance measurement mode. For a long wire, connect the probes at each end of the wire to measure the resistance. For a short wire, connect the probes very close to each other to measure the resistance. Make sure the wire is not connected to any power source during the measurement.
What change to a wire would cause its resistance to decrease?
Decreasing the length or increasing the thickness of the wire would cause its resistance to decrease.
Why not use an ohm meter to measure the leakage in wire insulation?
An ohm meter measures resistance in a circuit, not leakage in wire insulation. To measure insulation resistance or leakage in wire insulation, you would typically use a megohmmeter or insulation resistance tester, which applies a higher voltage than an ohm meter to test the integrity of the insulation.
What is the affective method to test a wire in a circuit?
To test a wire in a circuit, use a multimeter set to the resistance (ohms) setting. Disconnect the wire and touch one probe to each end of the wire. If the multimeter reads zero ohms, the wire is continuous (no breaks). If the multimeter reads infinity or a very high resistance, there is a break in the wire.
What are the dependent variables in a copper wire resistance experiment?
The dependent variables in a copper wire resistance experiment would typically be the resistance of the copper wire being measured. This would vary based on factors like the length and thickness of the wire, as well as the temperature.
What is the conductance of a wire that has a resistance of 400 ohms?
The conductance of a wire is the reciprocal of its resistance. Therefore, for a wire with a resistance of 400 ohms, the conductance would be 1/400 siemens, or 0.0025 siemens.
How can I perform testing with a multimeter on a wire to ensure its functionality?
To test a wire's functionality with a multimeter, set the multimeter to the resistance or continuity mode. Connect the multimeter's probes to each end of the wire. If the multimeter shows a low resistance or beeps, the wire is functioning properly. If there is high resistance or no beep, the wire may be faulty.
What kind of wire would have the greatest electrical resistance?
A thin and long wire made of a material with high resistivity, such as nichrome or tungsten, would have the greatest electrical resistance.
A wire that is what would have the greatest electrical resistance?
A long and thin wire made of a material with high resistivity and low conductivity would have the greatest electrical resistance. The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area, so a long, thin wire will have a greater resistance compared to a shorter, thicker wire.
