Buy custom factors affecting the resistance of wire
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| Topic: |
Science
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| Number of pages / Number of words: |
7 / 1745 |
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That is why I have chosen to change the cross sectional area of the conductor.
The main equation that describes the resistive behavior of a piece of uniform metallic wire is
R = resistance in ohms
r = resistivity in ohm-metres
l = length in metres
A = area of cross-section in square-metres
The resistivity is simply a constant number for the particular material that makes the numbers work out in S...
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units. The resistivity of Constantan wire is 47? 10 Wm. Different materials have different resistivities; the higher the resistivity the larger the resistance for a given length and cross-section.
We can see from this equation that if the material and area are kept constant, then the equation shows that resistance is directly proportional to the length assuming the wire is uniform...
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?®Describe stroke cycle for Breaststroke identifying phases of propulsion and resistance. Define and analyse the major muscle groups used and the energy system demands made on the body in swimming this stroke over 200 metres in 2 minutes 10secon...
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