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?

The core of a toroid having 3000 turns has inner and outer radii of 16 cm and 17 cm respectively . The magnetic field in the core for a current of 0.07 A is 2.5 T . What is relative permeability of the core ?

A toroid has 2000 turns. The inner & outer radii of its core are 11cm and 12cm respectively. The magnetic field in the core for a current of 0*7A is 2*5T . What is relative permeability of core?

A toroid has 1500 turns and the inner and outer radii of its core 6 cm and 8 cm respectively. The magnetic field in the core for a current of 0.5 A is 2 T. The relative permeability of core is

A toroidal coil has 3000 turns. The inner and outer radii are 10 cm and 12 cm respectively. If current flowing is 5 A, then the magnetic field inside the toroid will be

A solenoid having 100 turns with an area of cross section 10 cm^(2) is 12 cm long. When iron core is introduced in it, the self-inductance increases to 1000 times. Calculate the relative permeability of the core.

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 toroid consists of a coil wrapped around with 4 layers of windings of 300 turns each. The inner and outer radius of toroid are 10 cm and 15 cm, respectively. Il the coil carries a current of 15 A, find the maximum and minimum values of the magnetic field within the toroid.

A ring of mean radius 15cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800 . What is the magnetic field in the core for a magnetising current of 2*4A ?

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.