A rod with cross-section A = 2.0 cm² is placed in a magnetizing field H = 10⁵/(4π) A m⁻¹. The magnetic flux through the rod is Φ = 1.0 × 10⁻⁵ Wb. The magnetic susceptibility χ of the material is (use

Question

A rod with cross-section A = 2.0 cm² is placed in a magnetizing field H = 10⁵/(4π) A m⁻¹. The magnetic flux through the rod is Φ = 1.0 × 10⁻⁵ Wb. The magnetic susceptibility χ of the material is (use μ₀ = 4π × 10⁻⁷ H m⁻¹):

Accepted Answer

Answer: 4 — Φ = B·A = μ₀μᵣHA ⇒ μᵣ = 5 ⇒ χ = μᵣ − 1 = 4.

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