Figure shows a piece of semiconductor (pure$$ $$one) S in series with a variable resistor R and a source of constant voltage V. S is heated and the current is kept constant by adjustment of R. Which of the following factors will decrease during this process?

Question

Figure shows a piece of semiconductor (pure$$ $$one) S in series with a variable resistor R and a source of constant voltage V. S is heated and the current is kept constant by adjustment of R.  Which of the following factors will  decrease  during this process?

Infinity Learn · Accepted Answer

Note that drift velocity in semiconductors is affected by an increase in temperature in the same way as in metals,  i.e.,  reduced due to an increase in the number of collisions with the lattice ions which vibrate with greater amplitude at a higher temperature.

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