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Saturday, 31 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 12× in all
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  3. 15 Apr 2023, Shift 1 · Q43In the given circuit, the current (I) through the battery will beMediumDiagram basedHas a figure
  4. 25 Jul 2022, Shift 2 · Q56Two ideal diodes are connected in the network as shown is figure. The equivalent resistance between A and B is _______ Ω\Omega .MediumNumerical valueHas a figure
  5. 27 Jun 2022, Shift 2 · Q60The cut-off voltage of the diodes (shown in figure) in forward bias is 0.6 V. The current through the resister of 40 Ω\Omega is ________…MediumNumerical valueHas a figure
  6. 27 Aug 2021, Shift 1 · Q21A circuit is arranged as shown in figure. The output voltage Vo\mathrm{V_o} is equal to __________ V.MediumNumerical valueHas a figure
  7. 25 Feb 2021, Shift 1 · Q7A 5 V battery is connected across the points X and Y. Assume D1D_1 and D2D_2 to be normal silicon diodes. Find the current supplied by the…MediumDiagram basedHas a figure
  8. 26 Feb 2021, Shift 1 · Q28The circuit contains two diodes each with a forward resistance of 50 Ω\Omega and with infinite reverse resistance. If the battery voltage…MediumNumerical valueHas 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 108 of the 174 JEE Main shifts held from 2017 to 2026.