NEET UG 2017 · Physics · Question 22
NEET 2017 Physics, question 22
Question 22 of the NEET 2017 paper (code A) is a Physics question from Semiconductor Electronics: Materials, Devices and Simple Circuits. Its idea, p-n Junction: Depletion Region and Biasing, was asked 4 times, in 2017, 2020, 2022 and 2026, across NEET 2017–2026. The CBSE official answer key gives option 1.
Updated 2026-10-08
Q22 · Physics
Which one of the following represents forward bias diode ?
The figure, described in words
Each option: diode (arrow pointing right, anode on left) in series with resistor R; left terminal and right terminal potentials (1) 0 V, -2 V (2) -4 V, -3 V (3) -2 V, +2 V (4) 3 V, 5 V.
- 1[diode circuit: 0 V — diode — R — V]Official answer
- 2[diode circuit: V — diode — R — V]
- 3[diode circuit: V — diode — R — V]
- 4[diode circuit: 3 V — diode — R — 5 V]
Official answer: option 1 · CBSE official answer key
Same idea
p-n Junction: Depletion Region and Biasing, in other papers
NEET asked this idea 4 times, in 2017, 2020, 2022 and 2026. The other 3 questions below.
- 2026 Q42Three identical p-n junction diodes , and are connected across a battery as shown in the figure. If the width of the…Figure-based · Medium
- 2022 Q23[Figure: circuits (a), (b), (c)] In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in :Figure-based · Medium
- 2020 Q153The increase in the width of the depletion region in a p-n junction diode is due to :One-line MCQ · Easy
p-n Junction: Depletion Region and Biasing: every question and how it was framed
The chapter
Semiconductor Electronics: Materials, Devices and Simple Circuits in ten years of NEET
27 questions from 2017–2026, asked in 10 of 10 papers, about 2.6 a paper. Semiconductor Devices alone had 17.