Physics 2 - Resistance and V = I X R

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  • Created by: Sash
  • Created on: 21-05-13 17:57

Resistance and V = I X R

Voltage-Current graphs show how the current varies as you change the potential difference (voltage).

1) Different Resistors - The current through a resistor (at a constant temperature) is directly proportional to P.D. Different resistors have different resistances.

2) Filament Lamp - As the temperture of the filament increases, the resistance increases.

3) Diode - Current will only flow through a diode in one direction. The diode has a very high resistance in the opposite diode.

Resistance Increases with Temperature

  • When an electrical charge flows through a resistor…


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