1.

Which of the following statements is not true [IIT-JEE 1997 Re-Exam]

A. The resistance of intrinsic semiconductors decrease with increase of temperature
B. Doping pure \[Si\]with trivalent impurities give P-type semiconductors
C. The majority carriers in N-type semiconductors are holes
D. A PN-junction can act as a semiconductor diode
Answer» D. A PN-junction can act as a semiconductor diode


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