Verified Solution • 2025–26 Session moderate

QPages 277-278: Q12: HC Verma: Concepts of Physics - Volume 2 Permanent Magnets Pages 277-278: Q12 Solution: If the earth's magnetic field has a magnitude at the magnetic…

If the earth's magnetic field has a magnitude 3.4×10−5 T3.4 \times 10^{-5} \text{ T} at the magnetic equator of the earth, what would be its value at the earth's geomagnetic poles?

Step-by-Step Verified Solution

**Answer:** Bpole=6.8×10−5 TB_{pole} = 6.8 \times 10^{-5} \text{ T}. **Step-by-Step Explanation:** Given: Bequator=3.4×10−5 TB_{equator} = 3.4 \times 10^{-5} \text{ T}. The field at the pole is twice the field at the equator: Bpole=2Bequator=6.8×10−5 TB_{pole} = 2 B_{equator} = 6.8 \times 10^{-5} \text{ T} [citation:12].

All Questions in this Chapter

QPage 276: Q1 QPage 276: Q2 QPage 276: Q3 QPage 276: Q4 QPage 276: Q5 QPage 276: Q6 QPage 276: Q7 QPage 276: Q8 QPage 276: Q9 QPage 276: Q10 QPage 276: Q11 QPage 276: Q12 QPage 276: Q13 QPage 277: Q1 QPage 277: Q2 QPage 277: Q3 QPage 277: Q4 QPage 277: Q5 QPages 275-276: Q1 QPages 275-276: Q2 QPages 275-276: Q3 QPages 275-276: Q4 QPages 275-276: Q5 QPages 275-276: Q6 QPages 275-276: Q7 QPages 275-276: Q8 QPages 275-276: Q9 QPages 275-276: Q10 QPages 275-276: Q11 QPages 277-278: Q1 QPages 277-278: Q2 QPages 277-278: Q3 QPages 277-278: Q4 QPages 277-278: Q5 QPages 277-278: Q6 QPages 277-278: Q7 QPages 277-278: Q8 QPages 277-278: Q9 QPages 277-278: Q10 QPages 277-278: Q11 QPages 277-278: Q12 QPages 277-278: Q13 QPages 277-278: Q14 QPages 277-278: Q15 QPages 277-278: Q16 QPages 277-278: Q17 QPages 277-278: Q18 QPages 277-278: Q19 QPages 277-278: Q20 QPages 277-278: Q21 QPages 277-278: Q22 QPages 277-278: Q23 QPages 277-278: Q24 QPages 277-278: Q25

Related Learning Resources & Exam Preparation

Chapter Practice Bank
Practice all topic-wise questions from Permanent Magnets
Reference Textbook Solutions
Explore complete chapter exercises for HC Verma: Concepts of Physics - Volume 2
Competitive PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring