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Physics
Classical Physics
Electromagnetism
The resistance of an ohmic conductor
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[QUOTE="Delta2, post: 6508350, member: 189563"] I am not sure that your intuitive model, according to which you conclude more resistance means more collisions is entirely correct. Formally resistance is defined as ##R=\frac{V}{I}##. Decreasing the cross sectional area decreases I and that's why R is increasing. (it is ##I=nSve## where ##S## the cross sectional area, ##n## the density of free electrons, ##v## the average drift velocity and ##e## the charge of electron.) [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
The resistance of an ohmic conductor
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