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The temperature (T) dependence of resist...

The temperature (T) dependence of resistivity (rho) of a semiconductor is represented by :

A

B

C

D

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The correct Answer is:
B
The variation of specific resitance with temperature is given by
`rho=rho_(0)[1+alpha(T-T_(0)]`
Where `alpha`=temprature coefficient of resitance which in negativee for semicondutor.
`rho=rho_(0)-rho_(o)`alpha`(T-T_(0))`
Comaring with straight line equation,`y=mx+cimplies`m,slope is negative.
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