Two electric bulbs have transparent filament of ___

Two electric bulbs have transparent filament of same thickness.

It one of them gives 60 W and other gives 100 W, then

A. 60 W lamp filament has shorter length.
B. 100 W lamp filament has longer length.
C. 60 W lamp filament has longer length.
D. 60 W and 100 W lamp filament have equal length.

Show Answer

Answer: C

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