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JEE Main 7 April 2025, Shift 2, Physics Q49

Question 49 of 75 in this shift, Physics question 24 of 25, Section B.

A parallel plate capacitor has charge

5\times10^{-6}

C. A dielectric slab is inserted between the plates and almost fills the space between the plates. If the induced charge on one face of the slab is

4\times10^{-6}

C then the dielectric constant of the slab is __________.

Official answer

NTA final key.

Chapter: Electrostatic Potential and Capacitance
Topic: Dielectrics
Idea tested: Induced Surface Charge Density

Same topic in other shifts

All Dielectrics questions

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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.