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Does temperature determine the resistance of a wire?
Since the resistance of some conductor, such as a piece of wire, depends on collisions within the wire itself, the resistance depends on temperature. With increasing temperature, the resistance of the wire increases as collisions within the wire increase and “slow” the flow of current.
How does temperature affect resistance of a wire experiment?
An increase in temperature of the copper wire will cause an increase in the resistance of the copper wire, and will thereby reduce conductivity, which is the flow of electric current through the wire. This experiment is a medium risk experiment.
How to find the temperature of a resistance wire?
For the next iteration adjust the estimated wire temperature, T wire until the two values of q are approximately equal. For the above conditions, iteration using a spreadsheet yielded the following result. The estimated resistance wire temperature = 348°C.
How to calculate heat gained in a wire?
How to calculate heat in wires. Anyone can advise on what is the formula to calculate heat gained in wires when a current passes through ? Looking for a wire to take 80A with 1meter in length . Don’t want the wires to burn out . Operating under room temperature .
How to determine the resistance of an open coil heating element?
Taking a quick initial look at the basic convection heat transfer equation below (sometimes referred to as Newton’s Law of Cooling), it appears it would be relatively straight forward to determine the resistance wire temperature of an open coil heating element.
How do I calculate the temperature rise in a copper conductor?
Check out our Code of Conduct. Moving away from the pure calculus, just look at the manufacturers rating. Most cables are limited by the insulation material as this melts long before the cable causing catastrophic failure. Think of a fuse wire. A 30 A fuse wire is very thin and a lot thinner than the in property cabling.