Assertion (A): The electrical conductivity of a pure Ge crystal increases with increase…
Physics · Class 12 · CBSE — Semiconductor Electronics
Assertion (A): The electrical conductivity of a pure Ge crystal increases with increase in its temperature.
Reason (R): The number of electrons excited by thermal excitation from the valence band to the conduction band, in a semiconductor, increases with increase in temperature.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
(A) Both A and R are true and R is the correct explanation of A.
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