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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyApplication

JEE Main 25 June 2022, Shift 2, Physics Q38

Question 38 of 90 in this shift, Physics question 8 of 30, Section A.

Two metallic plates form a parallel plate capacitor. The distance between the plates is ‘dd’. A metal sheet of thickness d2\frac{d}{2} and of area equal to area of each plate is introduced between the plates. What will be the ratio of the new capacitance to the original capacitance of the capacitor?
  1. (1)2:1Official answer
  2. (2)1:2
  3. (3)1:4
  4. (4)4:1

Official answer

Option 1

NTA final key.

Chapter
Electrostatic Potential and Capacitance
Topic
Parallel Plate Capacitors
Idea tested
Inserted Conducting Slab

Same idea in other shifts

Asked 2× in all
  1. 10 Apr 2023, Shift 2 · Q31The distance between two plates of a capacitor is d and its capacitance is C1C_1, when air is the medium between the plates. If a metal…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.