Question
Question: A specimen of iron of permeability 8 × 10<sup>–3</sup> Weber/amp × metre is placed in a magnetic fie...
A specimen of iron of permeability 8 × 10–3 Weber/amp × metre is placed in a magnetic field of strength 160 amp/meter. Then magnetic induction in this iron is –
A
20 × 103 wb/m2
B
1.28 wb/m2
C
5 × 10–5 wb/m2
D
0.8 wb/m2
Answer
1.28 wb/m2
Explanation
Solution
μ = 8 × 10–3, H = 160, B = μH = 1.28 wb/m2