An iron rod of volume `10^-4m^3` and relative permeability `1000` is placed inside a long
Channel: Doubtnut
Date: 2020-08-02

An iron rod of volume `10^-4m^3` and relative permeability `1000` is placed inside a long solenoid wound with 5 turns/cm. If a current of `0*5A` is passed through the solenoid, find the magnetic moment of the rod.