Home Physics Semiconductor Electronics All Topic Question for Revision Test When the electrical conductivity of a semico…
Physics Semiconductor Electronics All Topic Question for Revision Test MCQ (Single Correct)

When the electrical conductivity of a semiconductor is due to the breaking of its covalent bonds, then the semiconductor is said to be

A
donor
B
acceptor
C
intrinsic
D
extrinsic

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Text Solution

Verified by Experts
The correct answer is:
C

When conductivity in a semiconductor arises purely due to the breaking of its own covalent bonds, the charge carriers (electrons and holes) are generated within the crystal itself, without any impurity doping.

Such a semiconductor is called an intrinsic semiconductor.

Intrinsic → pure semiconductor, carriers from thermal breaking of covalent bonds

Extrinsic → doped semiconductor (donor or acceptor impurities)

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