Question

Which main things light the bulb
A. Electricity
B. Filament
C. Wiers
D. All of these
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Answer 1

Answer:

All of these

Explanation:

Electricity is the source of energy which reaches the filament through the wires.

the filament heats up due to the electricity which lights the bulb

Answer 2

answer is d

Explanation:

as the electricity in any like cell or ac power is required . as the filament of bulb only light up the bulb so the filament is also essential then wires as they would also be needed as they carry electric current to the bulb so the answer is d