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Factors affecting the resistance of a wire
Date Submitted: 11/12/2000 21:10:53
Category: / Science & Technology
Length: 9 pages (2368 words)
Views: 35925
Factors affecting the resistance of a wire Introduction: Resistance is a force, which opposes the flow of an electric current around a circuit. Resistance is measured in Ohms. George Ohm discovered that a circuit sometimes resists the flow of electricity. He called this 'RESISTANCE.' He even came up with a rule for working out the resistance of a circuit, which was: R= V ÷ I V- Volts I- Current R- Resistance Ohms …
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…the path of the electrons. This increase in collisions means that there will be an increase in resistance. Type of metal: If the material has a high number of atoms there will be high numbers of electrons causing a lower resistance because of the increase in the number of electrons. Also if the atoms in the material are closely packed then the electrons will have more frequent collisions and the resistance will increase Jugbir Dhillon
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