A solenoid has a core of a material with relative permeability `400`. The windings of the
Channel: Doubtnut
Date: 2020-08-02

A solenoid has a core of a material with relative permeability `400`. The windings of the solenoid are insulated from the core and carry a current of `2A`. If the number of turns is `1000` per metre, calculate (i) H (ii) B (iii) Intensity of magnetisation I, and the magnetising current.