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Topic Electromagnetism
Asked 8 times across 3 UPSC exams over 11 years (2014–2025), peaking in 2022.
Key insights
- Most tested in CDS — 4 of 8 PYQs
- Most asked in 2022
- Recurs across 6 years (2014–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CDS 2014 → CAPF 2018 → NDA 2021
How the concept evolved
Rising — more than half its appearances (7 of 8) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CDS2025
The rule that determines the direction of a magnetic field produced around a straight conductor carrying current is :
- A Right-hand thumb rule ✓
- B Fleming's left-hand rule
- C Fleming's right-hand rule
- D Hund's rule
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
CAPF2022
The technology known as 'Electromagnetic Air Lift System' is sometimes talked about in reference to
- A launching guided missiles from silos
- B launching aircraft from warships ✓
- C navigation of nuclear-powered submarines
- D development of reusable rockets
✓ Correct answer: (B)
Science & Technology › Defence Tech
CDS2022
Which one of the following statements is not correct ?
- A An electric motor converts electrical energy into mechanical energy.
- B An electric generator works on the principle of electromagnetic induction.
- C The magnetic field at the centre of a long circular coil carrying current will be parallel straight lines.
- D A wire with a green insulation is usually the live wire of an electric supply. ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
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