Practice portal › NEET › Semiconductor Electronics

Intrinsic and Extrinsic Semiconductors for NEET: 14 solved questions

Real NEET paper questions on intrinsic and extrinsic semiconductors, part of semiconductor electronics. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 1989 to 2023. No sign-in needed to read them.

What this topic asks

• Doping and carrier concentration — 13 questions
• Conductivity and mobility — 1 question

All 14 questions with solutions

• A p-type extrinsic semiconductor is obtained when germanium is doped with NEET 2023 (mpr)
• The electron concentration in an n-type semiconductor is the same as the hole concentration in a p-type semic… NEET 2021
• For a p-type semiconductor, which of the following statements is true? NEET 2019
• In an n-type semiconductor, which of the following statements is true? NEET 2013
• If a small amount of antimony is added to a germanium crystal NEET 2011 (Mains)
• Pure Si at 500 K has equal electron (nₑ) and hole (nₕ) concentrations of 1.5×10¹⁶ m⁻³. Doping by indium incre… NEET 2011 (Mains)
• Which one of the following statements is false? NEET 2010 (Mains)
• In the energy band diagram of a material shown below, the open circles and the filled circles denote holes an… AIPMT 2007
• In a p type semiconductor, the majority carriers of current are CBSE AIPMT 1999
• In a junction diode, the holes are due to CBSE AIPMT 1999
• Which of the following, when added as an impurity into the silicon produces n type semiconductor? CBSE AIPMT 1999
• To obtain a p-type germanium semiconductor, it must be doped with CBSE AIPMT 1997
• When arsenic is added as an impurity to silicon, the resulting material is CBSE AIPMT 1996
• When n type semiconductor is heated CBSE AIPMT 1989