Question

A magnetising field of 1600 A m–1 produces a magnetic flux of 2.4 × 10–5 Wb in an iron bar of cross-sectional area 0.2cm2. The susceptibility of an iron bar is

(a) 298

(b) 596

(c) 1192

(d) 1788

Answer 1

Correct option (b)

Explanation:

Here, magnetising field, H = 1600 A m–1

Magnetic flux, ϕ = 2.4 × 10–5 Wb

Area, A = 0.2cm2 = 0.2 × 10–4m2