Learn

Saturday, 31 October

JEE Main 2023 · PhysicsMultiple choiceAssertion–reasonMediumConceptual

JEE Main 6 April 2023, Shift 2, Physics Q42

Question 42 of 90 in this shift, Physics question 12 of 30, Section A.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Diffusion current in a p-n junction is greater than the drift current in magnitude if the junction is forward biased. Reason R: Diffusion current in a p-n junction is from the n-side to the p-side if the junction is forward biased. In the light of the above statements, choose the most appropriate answer from the options given below
  1. (1)Both A and R are correct and R is the correct explanation of A
  2. (2)Both A and R are correct but R is NOT the correct explanation of A
  3. (3)A is correct but R is not correctOfficial answer
  4. (4)A is not correct but R is correct

Official answer

Option 3

NTA final key.

Chapter
Semiconductor Electronics: Materials, Devices and Simple Circuits
Topic
Semiconductor Diodes
Idea tested
Forward and Reverse Biasing

Same idea in other shifts

Asked 6× in all
  1. 4 Apr 2026, Shift 2 · Q45Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: A diode under…MediumAssertion–reason
  2. 4 Apr 2024, Shift 2 · Q31Which of the diode circuit shows correct biasing used for the measurement of dynamic resistance of p-n junction diode :EasyDiagram basedHas a figure
  3. 27 Jan 2024, Shift 1 · Q48Which of the following circuits is reverse - biased ?EasyDiagram basedHas a figure
  4. 10 Apr 2023, Shift 2 · Q43If each diode has a forward bias resistance of 25 Ω\Omega in the below circuit, which of the following options is correct:MediumDiagram basedHas a figure
  5. 28 Jun 2022, Shift 1 · Q47For using a multimeter to identify diode from electrical components, choose the correct statement out of the following about the diode :EasySingle correct

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. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.