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In pure semiconductor, the number of con...

In pure semiconductor, the number of conduction electrons is `6 xx 10^18` per cubic metre. How many holes are there in a sample of size 1 cm x 1 cm x 1 mm?

A

`6xx10^19`

B

`6xx10^15`

C

`6xx10^12`

D

`6xx10^10`

Text Solution

Verified by Experts

The correct Answer is:
C
In a pure semiconductor, no. of electrons = no. of holes
Volume of the semiconductor =`10^(-2)xx10^(-2)xx10^(-3)`
`=10^(-7) m^3`
``therefore` No. of holes = `10^(-7)xx6xx10^19=6xx10^12`
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