The hot resistance of the bulb s filament is higher than its cold resi – McqOptions

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1.	The hot resistance of the bulb s filament is higher than its cold resistance because the temperature co-efficient of the filament is___________________?
A.	Zero
B.	Negative
C.	Positive
D.	About 2 ohms per degree
Answer» D. About 2 ohms per degree

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