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Semiconductor Diode and Diode Circuits for NEET: 16 solved questions

Real NEET paper questions on semiconductor diode and diode circuits, part of semiconductor electronics. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 1988 to 2026. No sign-in needed to read them.

What this topic asks

• Biasing and I-V characteristics — 8 questions
• Circuits with diodes — 8 questions

All 16 questions with solutions

• Two statements are given below. A. When the forward bias voltage across a p-n junction diode increases above… NEET 2026
• The current I in the circuit shown is: (All diodes are ideal and identical) NEET 2026
• In the given circuits (a), (b) and (c), the potential drops across the two p-n junctions are equal in NEET 2022
• In a p-n junction diode, a change in temperature due to heating NEET 2018
• Which one of the following represents a forward biased diode? NEET 2017
• Consider the junction diode as ideal. The value of the current flowing through AB is NEET 2016 (Phase I)
• The given circuit has two ideal diodes connected as shown in the figure. The current flowing through the resi… NEET 2016 (Phase II)
• A diode D is connected in series with an external resistance R=100 Ω and an emf of 3.5 V. If the barrier pote… NEET 2015
• In forward biasing of a p-n junction NEET 2011
• In the figure, four diode circuits are marked (A), (B), (C) and (D). The diodes which are forward biased are NEET 2011 Mains
• Of the diode circuits shown in the figure, the one in which the diode is reverse biased is AIPMT 2004
• For the given circuit of the p-n junction diode, which one of the following is correct? AIPMT 2002
• The current in the circuit shown will be AIPMT 2001
• On connecting a battery the device passes a current, but when the battery is reversed, the current drops to a… CBSE AIPMT 1998
• The diode used in the circuit shown has a constant voltage drop of 0.5 V at all currents and a maximum power… AIPMT 1997
• A p-n junction is said to be forward biased when CBSE AIPMT 1988