Physics - Semiconductors Question with Solution | TestHub

The variation of specific resistance with temperature is given by $$\rho ={\rho }_0\left[1+\alpha \left(T-T_0\right)\right]$$ where $\alpha =$ temperature coefficient of resistance which is negative for semiconductor. $$\rho ={\rho }_0-{\rho }_0\alpha \left(T-T_0\right)$$ Comaring with straight line equation, $y=mx+c$ $\Rightarrow m$, slope is negative.