Jitender Pal
Last Activity: 10 Years ago
Sol. (a) H = 1500 A/m
As the solenoid and the rod are long and we are interested in the magnetic intensity at the centre,
the end effects may be neglected. There is no effect of the rod on the magnetic intensity at the
centre
(b) I = 0.12 A/m
We know I ⃗ = XH ⃗ X = Susceptibility
⇒ X = I / H = 0.12/1500 = 0.00008 = 8x 10^-5
(c) The material is paramagnetic.