Q15.At an angle of 30° to the magnetic meridian, the apparent dip is 45°. Find the true dip: (1) tan−1 √3 (2) tan−1 1 √3 (3) tan−1 2 (4) tan−1 √32 √3
What This Question Tests
This question tests the relationship between true dip and apparent dip when the dip circle is oriented at an angle to the magnetic meridian.
Concepts Tested
Formulas Used
tan φ' = tan φ / cos α
📚 NCERT Sections This Tests
4.5 — What Is The Magnitude Of Magnetic Force Per Unit Length On A Wire
Physics Class 11 · Chapter 4
4.5 What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of 30º with the direction of a uniform magnetic field of 0.15 T?
4.4 — A Horizontal Overhead Power Line Carries A Current Of 90 A In East To
Physics Class 11 · Chapter 4
4.4 A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line?
4.10 — Two Moving Coil Meters, M1 And M2 Have The Following Particulars:
Physics Class 11 · Chapter 4
4.10 Two moving coil meters, M1 and M2 have the following particulars: R1 = 10 Ω, N1 = 30, A1 = 3.6 × 10–3 m2, B1 = 0.25 T R2 = 14 Ω, N2 = 42, A2 = 1.8 × 10–3 m2, B2 = 0.50 T (The spring constants are identical for the two meters). Determine the ratio of (a) current sensitivity and (b) voltage sensitivity of M2 and M1.
📋 Question Details
- Chapter
- Magnetism & Matter
- Topic
- Earth's magnetic field and dip angle
- Year
- 2021
- Shift
- 20 Jul Shift 2
- Q Number
- Q15
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 5: Magnetism and Matter
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