Physics · Semiconductor and Electronic Devices
JEE Main 2026 — 5 April, Morning Shift — Question 18
For the given logic circuit, which of the following inputs combination will make both LED-1 and LED-2 to glow?
- Option A:
A = 0, B = 1, C = 1
- Option B:
A = 1, B = 0, C = 0
- Option C:Correct
A = 1, B = 0, C = 1
- Option D:
A = 1, B = 1, C = 0
Answer: C
Step-by-step solution
LED-1 glows when output of OR gate is 1 LED-2 glows when output of AND gate is 1. Evaluating combinations gives A=1,B=0,C=1 produces both high.
Answer key and solution verified before publishing.
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- Exam
- JEE Main 2026
- Subject
- Physics
- Chapter
- Semiconductor and Electronic Devices
- Topic
- Boolean Algebra, Truth Tables and Logic Gates