wires, filament lamps and most other components follow the general rule that as their temperature increases their resistance also increases - this is because the particles get in the way of the electrons more when the object is warmer
The perfect wire vs real life wires
always conducts more current when we increase the potential difference
the perfect wire vs real life wires?
real wire, resistors and filament lamps tend to only let some current pas, even when the p.d increases
ohmic resistor vs non-ohmic resistor?
Ohmic resistor: Follows Ohm's law and has a constant resistance. Non-ohmic resistor: Does not follow Ohm's law and has a variable resistance
