PYQPulse
HomeMocksPracticePYQsDashboard
PYQPulse

Timing-accurate mock tests and PYQs for SSC, Banking and Railway exams — so the real paper feels like a revision.

Exams

  • SSC exams
  • Banking exams
  • Railway exams
  • All exams

Practice

  • Practice questions
  • Mock test series
  • Sectional tests
  • Year-wise PYQs
  • Performance analytics

Company

  • About us
  • Help Centre
  • Pricing
  • Sign in

Legal

  • Privacy Policy
  • Terms of Service

Contact

  • hello@testwala.co.in
  • Telegram
  • +91 62816 87760

Practice interface modeled on the official exam pattern — not the official examination. PYQPulse is not affiliated with the Staff Selection Commission, IBPS, SBI, RBI, NABARD, SEBI or Indian Railways.

© 2026 PYQPulse. All rights reserved.

Built for aspirants, by aspirants.

HomeMocksPracticeStats
  1. Home
  2. ›
  3. PYQs
  4. ›
  5. UKPSC PCS
  6. ›
  7. 2024
  8. ›
  9. Q66

UKPSC PCS 2024 · Question 66 of 142

Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1A. What will be the magnitude of the magnetic field at the centre of the coil ?

Science & Tech

  1. A6.28 × 10–4 TCorrect
  2. B6.28 × 10–3 T
  3. C2.68 × 10–4 T
  4. D6.82 × 10–2 T

Answer: A. 6.28 × 10–4 T

Explanation

B = mu0*N*I/2R = 6.28 x 10^-4 T for 100 turns, 10 cm radius, 1 A.

Source: UKPSC Combined Upper PCS Prelims GS Paper-I, Series-A, held 14 Jul 2024 (teachingninja PDF); answer from official UKPSC Series-A key

← Q65View full paper (142 questions)Q67 →

Practice the full UKPSC PCS 2024 paper

Timed test with all 142 questions, just like the real exam.

Start test