Question

what happens to the resistance of the tungsten when the temperature increases

Answer 1

Increasing the voltage results in anincrease in current, power andtemperature. ... This is a 'gentle' process as opposed to tungsten(metal) filaments that start out with a LARGE surge of current that thendecreases as the filament hears up. This is why tungsten bulbs will usually 'blow out' when first turned on.

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