Resistance

#physics #science

$\frac{\text{{Potential Difference}}}{\text{Current}} = \text{Resistance}$ Resistance often located in lamps or heaters, transforms electric energy to heat energy in opposing electrical currents. It is a measure of how difficult it is for a current to flow.

Effect of resistance

Electrons collide with ions as they move causing the restriction of movement therefore restricting the current

Lamps act as resistors. On the right the bulbs are dimmer due to lower current flow.