NEET UG 2017 · Physics · Question 24
NEET 2017 Physics, question 24
Question 24 of the NEET 2017 paper (code A) is a Physics question from Semiconductor Electronics: Materials, Devices and Simple Circuits. Its idea, Combined Circuit Truth Tables, was asked 5 times, in 2017, 2020, 2022, 2023 and 2025, across NEET 2017–2026. The CBSE official answer key gives option 3.
Updated 2026-10-08
Q24 · Physics
The given electrical network is equivalent to :
The figure, described in words
Logic network: A and B into a NOR gate; its output into a second NOR gate with both inputs joined; that output into a NOT gate giving Y.
- 1AND gate
- 2OR gate
- 3NOR gateOfficial answer
- 4NOT gate
Official answer: option 3 · CBSE official answer key
Same idea
Combined Circuit Truth Tables, in other papers
NEET asked this idea 5 times, in 2017, 2020, 2022, 2023 and 2025. The other 4 questions below.
- 2025 Q8The output (Y) of the given logic implementation is similar to the output of an/a _______ gate.Figure-based · Medium
- 2023 Q39For the following logic circuit, the truth table is:Figure-based · Easy
- 2022 Q45[Figure: logic circuit with inputs A, B and output C] The truth table for the given logic circuit is :Figure-based · Medium
- 2020 Q180For the logic circuit shown, the truth table is :Figure-based · Easy
Combined Circuit Truth Tables: 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. Logic Gates alone had 10.