The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum

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

admin:

Related Questions

  1. An electron moving in a circular orbit of radius r makes n rotations per second.
  2. A 1 µA beam of protons with a cross-sectional area of 0.5 sq.mm is moving with a velocity
  3. A long straight wire is carrying a current of 12 A. The magnetic field at a distance
  4. A sample of radioactive element has a mass of 10 gram at an instant t=0.
  5. A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter