- Created by: will__bishop
- Created on: 12-11-19 17:47
The resistance of ohmic conductors dosen't change with the current. The current flowing across an ohmic conductor is directley proportional to the potentional diffrence across the conductor (at a constant temprature).
Sometimes the resistance does change across the components.
For a diode the resistance depends on the direction of the current. They will happily let the current flow in one direction, but have a massive resistance if it is reversed.
The formula for potentional diffrence is:
Potentional diffrence (v)=Current(A) x Resistance
This can be written as V=IR
Resistance can be changed by whether the circuit is in Series or Parallel. The length of the wire can be another affect of the resistance.
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