1.

Which one of the following statements is false ?A. Pure Si doped with trivalent impurities gives a p-type semiconductorB. Majority carriers in a n-type semiconductor are holesC. Minority carriers in a p-type semiconductor are electronsD. The resistance of intrinsic semiconductor decreases with increase of temperature

Answer» Correct Answer - B
p-type semiconductor are obtained by adding a small amount of trivalent impurity to a pure sample of semiconductor (Ge).
Majority charge carriers-holes
Minority charge carriers-electrons
n-type semiconductor are obtained by adding a small amount of pentavalent impurity to a pure sample of semiconductor (Ge).
Majority charge carriers-electrons
The resistance of intrinsic semiconductors decreases with increase of temperature.


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