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Friday, 9 October

JEE Main 2025 · PhysicsMultiple choiceDiagram basedMediumApplication

JEE Main 8 April 2025, Shift 2, Physics Q45

Question 45 of 75 in this shift, Physics question 20 of 25, Section A.

The output voltage in the following circuit is (Consider ideal diode case)

The figure, in words

Circuit: +5 V supply through a resistor to a node that is Vout; diode D1 connects a +5 V terminal (left) to the node (forward direction towards the node); diode D2 connects a grounded terminal to the node (forward direction towards the node).
  1. (1)+ 5 V
  2. (2)0 VOfficial answer
  3. (3)–5 V
  4. (4)10 V

Official answer

Option 2

NTA final key.

Chapter
Semiconductor Electronics: Materials, Devices and Simple Circuits
Topic
Semiconductor Diodes
Idea tested
Ideal vs. Practical Diode Circuit Analysis

Same idea in other shifts

Asked 3× in all
  1. 4 Apr 2026, Shift 1 · Q42Consider a circuit consisting of a capacitor (20 μ20\ \muF), resistor (100 Ω100\ \Omega) and two identical diodes as shown in figure. The…MediumDiagram basedHas a figure
  2. 9 Jan 2020, Shift 2 · Q20The current ii in the network is :MediumSingle correctHas 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.