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Which has the higher resistance: a lamp filament with no current or one carrying current? Or...

Which has the higher resistance: a lamp filament with no current or one carrying current? Or do both have the same resistance?

a lamp filament with current
a lamp filament with no current
both have the same resistance
science   physics   
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Answer #1

As the temperature of filament increases , resistance will increase . At very high temperature resistance becomes very high and filament will break .

Hence option a is correct .

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