A solenoid has a core of a material with relative permeability 400. The wtndings of the solenoid are insulated from the core and carry a current of 2A. If the number of turns is 1000 per metre. Calculate (a) H, (b)M,(c) B and (d) the magnetising current `I_(m)`.

A solenoid has a core of a material with relative permeability of 500. The windings of the solenoid are insulated from the core and carry a current of 2 A. If the number of turns is 1000 per meter, then magnetisation is

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.

A solenoid has core of a material with relative permeability 500 and its windings carry a current of 1 A. The number of turns of the solenoid is 500per meter. The magnetization of the material is nearly

A solenoid having 2000 turns/m has a core of a material with relative permeability 220. The area of core is 4cm^(2) and carries a current of 5A. Calculate (a) Magnetic intensity (b) Magneic field (c ) Magnetisation (I) of the core Also calculate the pole strength developed.

A wire is wound on a long rod of material of relative permeability mu_(r) = 4000 to make a solenoid. If the current through the wire is 5 A and number of turns per unit length is 1000 per metre, then the magnetic field inside the solenoid is

Find magnetic flux density at a point on the axis of a long solenoid having 5000 turns/m when it carrying a current of 2 A

A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The coercivity of the bar magnet is :

A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The coercivity of the bar magnet is :

A ring of mean radius 15 cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800. The magnetic field in the core for a magnetising current of 1.2 A is

A long solenoid has 1000 turns per metre and carries a current of 1A . It has a soft iron core of mu_r=1000 . The core is heated beyond the Curie temperature, T_c .