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Friday, 9 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 24 June 2022, Shift 1, Physics Q48

Question 48 of 90 in this shift, Physics question 18 of 30, Section A.

A parallel plate capacitor is formed by two plates each of area 30π cm230\pi\ \mathrm{cm^2} separated by 1 mm. A material of dielectric strength 3.6×107 Vm−13.6\times10^{7}\ \mathrm{Vm^{-1}} is filled between the plates. If the maximum charge that can be stored on the capacitor without causing any dielectric breakdown is 7×10−67\times10^{-6} C, the value of dielectric constant of the material is : [Use 14πϵ0=9×109 Nm2C−2\frac{1}{4\pi\epsilon_0}=9\times10^{9}\ \mathrm{Nm^2C^{-2}}]
  1. (1)1.66
  2. (2)1.75
  3. (3)2.25
  4. (4)2.33Official answer

Official answer

Option 4

NTA final key (2022 Session 1).

Chapter
Electrostatic Potential and Capacitance
Topic
Parallel Plate Capacitors
Idea tested
Dielectric Strength and Voltage Rating

Same topic in other shifts

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  6. 9 Apr 2024, Shift 1 · Q40A capacitor is made of a flat plate of area A and a second plate having a stair-like structure as shown in figure. If the area of each…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. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.