Question

13 UH
-11
3. Why does the filament of an incandescent bulb glow?
a. It is the heating effect of electric current.
b. It is the magnetic effect of electric current.
C. An electric fuse is connected to it.
d. An electromagnet is connected to it.​

Answer 1

Answer:

a is the correct answer.

Answer 2

Answer:Option A is correct.

Explaination:

The typical incandescent light bulb contains a thin wire (usually tungsten) called a filament that has a high electrical resistance. This filament gets very hot when an electric current passes through it. The intense temperature makes the filament glow brightly.