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Solution


Q.

The resistivity (ρ) of semiconductor varies with temperature. Which of the following curve represents the correct behavior               [2023]
1  
2  
3  
4  

Ans.

(2)

With rise in temperature, number density (n) of electrons and holes increases for semiconductors.

As m, e, τ  are constant

ρ∝1n ⇒ ρ∝1T  [Rectangular hyperbola]