project on to show that the temperature is directly proportional to resistance........i need procedure with diagram
project on to show that the temperature is directly proportional to resistance........i need procedure with diagram
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Electricity flows in metals. Metal wires are made of millions of tiny metal crystals, and each crystal’s atoms are arranged in a regular pattern. The metal is full of "free" electrons that do not stick to any particular atom; rather, they fill the space between the atoms. When these electrons move, they create an electric current.
Conductors have resistance, but some are worse than others. The free electrons keep bumping into atoms. A wire's resistance depends on four main factors:
ResistivityLength of the wireCross-sectional areaTemperature of the wire
I will investigate how the length of the wire affects the resistance. I have done a preliminary experiment to help me decide the best way to do my investigation. The results will help me make predictions.