Effect of temperature on conductivity and resistance
The hypothesis that when the temperature of a wire increases, the resistance value of the wire will also increase and the conductivity of the wire will reduce is proven to be true.
The temperature of the wire increases due to its power loss, which is calculated as I2x R., where I is the current in the wire and R is the resistance. The higher the current in the wire or the higher resistance will cause the temperature of the wire to increase. Therefore it is important to choose the correct wire sizes to minimize this unwanted loss and reduce the temperature of the conductor.
What would happen if the experiment was repeated using different wire sizes?
The experiment can be repeated using aluminum wires.
Electrical resistance - http://en.wikipedia.org/wiki/Electrical_resistance
Electrical conductivity - http://en.wikipedia.org/wiki/Electrical_conductivity
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