Student Login

Home›Chapters›Semiconductor Electronics PYQs›Logic Gates›Question 133

JEE Main 2021 (16 Mar, Shift 2) · Logic Gates

Logic Gates question from JEE Main 2021 (16 Mar, Shift 2)

Q133JEE Main 2021 · 16 MAR · SHIFT 2Medium

Logic Gates

The following logic gate is equivalent to:

Show answer and solution

Answer: (a)

NAND with joined inputs is NOT, so the middle NAND receives $\bar{A}$ and $\bar{B}$ .
Middle NAND: $\overline{\bar{A}\,\bar{B}} = A + B$ .
Last NAND (as NOT): $Y = \overline{A + B}$ .
So the answer is (a) NOR gate.

Report a mistake

More questions on Logic Gates

Draw the output signal Y in the given combination of gates.JEE Main 2021 (26 Feb, Shift 2)
The logic circuit shown above is equivalent to:JEE Main 2021 (24 Feb, Shift 2)
If VA and VB are the input voltages (either 5V or 0V) and V0 is the output voltage then…JEE Main 2021 (31 Aug, Shift 2)
Which of the following gate is called universal gate?NEET 2020 (Phase 2)
For the logic circuit shown, the truth table is:NEET 2020 (Phase 1)
In the following digital circuit, what will be the output at ‘Z’, when the input (A, B)…JEE Main 2020 (2 Sep, Shift 2)
In the given circuit, value of Y is:JEE Main 2020 (8 Jan, Shift 2)
Boolean relation at the output stage-Y for the following circuit is:JEE Main 2020 (8 Jan, Shift 1)