| ⇦ | 
| ⇨ |
The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum μ₀ is 4πx10⁻⁷ Hm⁻¹. Absolute permeability of the material of the rod is
Options
(a) 3771×10⁻⁷ Hm⁻¹
(b) 3771×10⁻⁵ Hm⁻¹
(c) 3771×10⁻⁶ Hm⁻¹
(d) 3771×10⁻⁸ Hm⁻¹
Correct Answer:
3771×10⁻⁷ Hm⁻¹
Explanation:
Then given, χ(m) = 299, μ₀ = 4π × 10⁻⁷ Hm, and μ = ?
We know that, μ = μ₀ [1 + χ(m)]
μ = 4π × 10⁻⁷ (1 + 299) = 4 × (22/7) × 10⁻⁷ × 300
= [2.6400 / 7] × 10⁻⁷
= 3771.4 × 10⁻⁷ Hm⁻¹ (or),
≃ 3771 × 10⁻⁷ Hm⁻¹
Related Questions: - A rod of weight W is supported by two parallel knife edge A and B
- A particle moves in a circle of radius 5 cm with constant speed and time period
- Laser beams are used to measure long distance because
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
- On heating a ferromagnetic substance above curie temperature
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A rod of weight W is supported by two parallel knife edge A and B
- A particle moves in a circle of radius 5 cm with constant speed and time period
- Laser beams are used to measure long distance because
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
- On heating a ferromagnetic substance above curie temperature
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply