Student Login

Home›Chapters›Semiconductor Electronics PYQs›Intrinsic & Extrinsic Semiconductors›Question 60

NEET 1999 (AIPMT) · Intrinsic & Extrinsic Semiconductors

Intrinsic & Extrinsic Semiconductors question from NEET 1999 (AIPMT)

Q60NEET 1999 · AIPMTEasy

Intrinsic & Extrinsic Semiconductors

Which of the following when added as an impurity into silicon produces $n$ -type semiconductor?

Show answer and solution

Answer: (a)

n-type silicon needs a pentavalent donor.
P (group 15) is pentavalent; Al and B are trivalent, Mg is divalent.
So the answer is (a) P.

Report a mistake

More questions on Intrinsic & Extrinsic Semiconductors

In a junction diode, the holes are due toNEET 1999 (AIPMT)
In p -type semiconductor, the major charge carriers areNEET 1999 (AIPMT)
To obtain a p-type germanium semiconductor, it must be doped withNEET 1997 (AIPMT)
When arsenic is added as an impurity to silicon, the resulting material isNEET 1996 (AIPMT)
A piece of copper and other of germanium are cooled from the room temperature to 80 K…NEET 1992 (AIPMT)
When n type semiconductor is heatedNEET 1989 (AIPMT)
At absolute zero, Si acts asNEET 1988 (AIPMT)
In an intrinsic semiconductor, at any ordinary temperature, the correct relation between…MHT CET 2026 (14 May, Shift 2)