JEE Mains · Physics · STD 12 - 5. Magnetism and matter
The figure gives experimentally measured \(\mathrm{B}\) vs. \(H\) variation in a ferromagnetic material. The retentivity, co-ercivity and saturation. respectively, of the material are
- A \(150 \;\mathrm{A} / \mathrm{m}, 1.0\; \mathrm{T}\) and \(1.5\; \mathrm{T}\)
- B \(1.0 \;\mathrm{T}, 50\; \mathrm{A} / \mathrm{m}\) and \(1.5\; \mathrm{T}\)
- C \(1.5\; \mathrm{T}, 50\; \mathrm{A} / \mathrm{m}\) and \(1.0 \;\mathrm{T}\)
- D \(1.5\; \mathrm{T}, 50 \;\mathrm{A} / \mathrm{m}\) and \(1.0 \;\mathrm{T}\)
Answer & Solution
Correct Answer
(B) \(1.0 \;\mathrm{T}, 50\; \mathrm{A} / \mathrm{m}\) and \(1.5\; \mathrm{T}\)
Step-by-step Solution
Detailed explanation
Retentivity \(=1.0 \mathrm{T}\) Co-ercivity \(=50 \mathrm{A} / \mathrm{m}\) Saturation \(=1.5 \mathrm{T}\)
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