Question

The filament of bulb offers ______ resistance to electric current.

• A. no
• B. low
• C. high
• D. very low

Answer 1

The correct option is C high

The filament of bulb has high resistance so the filament heats up due to current passing through ($I^{2}R$ losses ) and due to its heating , the electrons change their energy states and photons in visible spectrum are emitted . more the losses , more would be the light.that's why filament of bulb offers high resistance.