An iron rod is placed parallel to magnetic field of intensity `2000 Am^-1`.
Channel: Doubtnut
Date: 2020-05-17

An iron rod is placed parallel to magnetic field of intensity `2000 Am^-1`. The magnetic flux through the rod is `6xx 10^-1` Wb and its cross-sectional area is `3 cm^2`. The magnetic permeability of the rod in Wb `A^-1 m^-1` is