A toroidal electromagnet has `1000` turns and mean radius of `0*1m`. The magnetic core has a relative permeability of `2000`. If a current of `1A` is placed. Calculate the magnetic induction.

A toroidal solenoid has 3000 turns and a mean radius of 10cm . It has a soft iron core of relative magnetic permeability 2000 . Find the magnitude of the magnetic field in the core when a current of 1.0amp. is passed through the solenoid.

A toroid of mean radius 16 cm has 1000 turns of wire closely wound on a ferromagnetic core of relative permeability 400. What is the magnetic induction B within the core for a magnetizing current of 1A?

An 1 m long straight solenoid has 1000 number of turns the relative permeability of its core material is 1000. if a current of 1 A passes through the magnetic field along its axis ?

A toroid of total 1000 turns is made by using a tore of average radius 25cm. What is the magnetic induction inside the tore if a current of2A is passed through it and the relative magnetic permeability of the tore material is mu = 100

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 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 toroid of 4000 turns has outer radius of 26 cm and inner radius of 25 cm. If the current in the wire is 10 A. Calculate the magnetic field of the toroid.

The core of a toroid having 3000turns has inner and outer radii of 11cm and 12cm respectively. The magnetic field in the core for a current of 0*70A is 2*5T . Calculate relative permeability of the core?