Read the excerpt from "Thomas Edison: The Master of Improvement.” Its glow was produced by electricity passing through a filament, or tiny piece of material. The inside of the glass bulb was a vacuum.

Based on context clues, what is the meaning of the word filament?

a place where electricity is made
a very small piece of material
the inside of a lightbulb
the vacuum inside a bulb

B or ,,a very small piece of material  the inside of a lightbulb "

Explanation:

• a conducting wire or thread with a high melting point, forming part of an electric bulb or vacuum tube and heated or made incandescent by an electric current.

× (Electrical engineering: General) A filament is the thin wire inside a light bulb that emits light when heated by an electric current. The incandescent light bulb makes light by heating a metal filament wire to a high temperature until it glows.

° Word forms: filaments. countable noun. A filament is a very thin piece or thread of something, for example, the piece of wire inside a light bulb.

hope i helped you ^^

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