Resistance in, say, a length of copper wire will cause the wire's temperature to increase. Resistance here can be viewed much like friction, and it is in this way that the temperature is driven higher.
Interestingly, the temperature of the wire before a current is passed along it will affect the wire's resistance. The colder the wire, the higher the initial resistance. Eventually, the resistance will warm the wire and the level of resistance will drop.
It is for this reason that filament light-bulbs almost always 'pop' when switched on, rather than when they have been on for some time. When they are cold and you flip the switch, the higher cold-state resistance causes the filament to heat very rapidly and 'pop'. When a bulb has been running a while and has warmed up, its resistance will be lower and therefore it will be less prone to blowing.
Interestingly, the temperature of the wire before a current is passed along it will affect the wire's resistance. The colder the wire, the higher the initial resistance. Eventually, the resistance will warm the wire and the level of resistance will drop.
It is for this reason that filament light-bulbs almost always 'pop' when switched on, rather than when they have been on for some time. When they are cold and you flip the switch, the higher cold-state resistance causes the filament to heat very rapidly and 'pop'. When a bulb has been running a while and has warmed up, its resistance will be lower and therefore it will be less prone to blowing.
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resistance that increases the temperature