the intrinsic semiconductor at room temperature is

Question

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Answer 1

At room temperature $(300 K e l v i n)$ ,
the electrons in the valence band are moved to the conduction band. When an electron leaves the valence band it creates a vacancy known as Hole.
A hole attracts electrons as it is positively charged.
In intrinsic semiconductor number of free electrons is equal to number of holes.

Answer 2

At room temperature $(300 K e l v i n)$ ,

the electrons in the valence band are moved to the conduction band. When an electron leaves the valence band it creates a vacancy known as Hole.

A hole attracts electrons as it is positively charged.

In intrinsic semiconductor number of free electrons is equal to number of holes.