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Topic

Dielectrics

Asked 2 times across 2 UPSC exams over 4 years (2020–2024), peaking in 2020.
2
PYQs
2
Exams
2
Years active
2020–2024
Span
2020
Peak
2/2
Answers
📅 Full chronological timeline →

Key insights

  • Most tested in EPFO — 1 of 2 PYQs
  • Most asked in 2020
  • Recurs across 2 years (2020–2024)

How it travelled across exams

First appearance in each exam — the same idea, reframed.
EPFO 2020 GEO 2024

How the concept evolved

120
124
Rising — more than half its appearances (2 of 2) are since 2016.

Sample questions

You've seen the pattern — here are a few of the actual PYQs.
GEO2024
Two dielectric media D1 and D2 have dielectric constants 3 and 2, respectively. They are separated by x − z plane. A uniform electric field E = 3 î + 2 ĵ exists in D1. Which one among the following is the correct electric field in D2 at the xz plane ?
  1. A E = 2 ĵ
  2. B E = 3 î + 3 ĵ ✓
  3. C E = 3 î − 2 ĵ
  4. D E = 2 î + 3 ĵ
✓ Correct answer: (B)
Science & Technology › Physics & Chemistry
EPFO2020
When a dielectric material is kept in an external electric field, which one of the following phenomena may be realized ?
  1. A Magnetization
  2. B Polarization ✓
  3. C Photoionization
  4. D Circularization
✓ Correct answer: (B)
Science & Technology › Physics & Chemistry

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