An iron rod of volume 10-4 m3 relative permeability 1000 is placed inside a long solenoid wound with - Physics - Magnetism And Matter

Question

An iron rod of volume 10-4 m3 & relative
permeability 1000 is placed inside a long solenoid wound with 5
turns per cm If a current of 0 5 A is passed through the solenoid,
find the magnetic moment of the rod

Akansha Tyagi · Accepted Answer

τ=μ×B=μNAliτ=1000×5×
5×10-4τ= 25amp-m2

An iron rod of volume 10-4 m3 & relative permeability 1000 is placed inside a long solenoid wound with 5 turns per cm. If a current of 0.5 A is passed through the solenoid, find the magnetic moment of the rod.

An iron rod of volume 10^-4 m³ & relative permeability 1000 is placed inside a long solenoid wound with 5 turns per cm. If a current of 0.5 A is passed through the solenoid, find the magnetic moment of the rod.