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Saturday, 10 October

JEE Main 2022 · PhysicsMultiple choiceDiagram basedMediumDiagram reading

JEE Main 25 July 2022, Shift 1, Physics Q50

Question 50 of 90 in this shift, Physics question 20 of 30, Section A.

In the circuit, the logical value of A=1A=1 or B=1B=1 when potential at A or B is 55 V and the logical value of A=0A=0 or B=0B=0 when potential at A or B is 00 V. The truth table of the given circuit will be :

The figure, in words

Inputs A and B each pass through a diode (D1 and D2 respectively, arrow pointing to the right) to a common node that is the output Y; from this node a resistor R goes to a 5 V battery whose other terminal is grounded (V = 0).
  1. (1)[truth table] A B Y: 0 0 0; 1 0 0; 0 1 0; 1 1 1Official answer
  2. (2)[truth table] A B Y: 0 0 0; 1 0 1; 0 1 1; 1 1 1
  3. (3)[truth table] A B Y: 0 0 0; 1 0 0; 0 1 0; 1 1 0
  4. (4)[truth table] A B Y: 0 0 1; 1 0 1; 0 1 1; 1 1 0

Official answer

Option 1

NTA final key (2022 Session 2).

Chapter
Semiconductor Electronics: Materials, Devices and Simple Circuits
Topic
Logic Gates
Idea tested
Diode Realization of OR and AND Gates

Same topic in other shifts

All Logic Gates questions
  1. 2 Apr 2026, Shift 2 · Q30If X and Y are the inputs, the given circuit works asMediumDiagram basedHas a figure
  2. 4 Apr 2026, Shift 1 · Q38Two 44 bits binary numbers, A=1101A=1101 and B=1010B=1010 are given in the inputs of a logic circuit shown in figure below. The output (YY) will…EasyDiagram basedHas a figure
  3. 5 Apr 2026, Shift 1 · Q45For the given logic circuit, which of the following inputs combination will make both LED-1 and LED-2 to glow?EasyDiagram basedHas a figure
  4. 6 Apr 2026, Shift 2 · Q43Refer to the logic circuit given below. For two inputs (A=1A=1, B=1B=1) and (A=0A=0, B=1B=1), output (YY) will be __________.EasyDiagram basedHas a figure
  5. 8 Apr 2026, Shift 2 · Q45The output YY for the given inputs AA and BB to the circuit is :MediumDiagram basedHas a figure
  6. 2 Apr 2025, Shift 2 · Q39In the digital circuit shown in the figure, for the given inputs the P and Q values are :MediumDiagram basedHas a figure

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.