A Rowland ring of mean radius 15 cm has ,3500 turns of wire wound on a ferromagnetic core of relative permeability 800. What Is. the magnetic field B In the core,for a magnetising current of 1.2 A?

A toroid has a core (non-ferromagnetic) of inner radius 25 cm and outer radius 26 cm, around which 3500 turns of a wire are wound. If the current in the wire is 11 A. What is the magnetic field a. outside the toroid b. inside the core of the toroid, and c. in the empty space surrounded by the toroid.

A toroid has an inner radius 0.30 m and an outer radius of 0.32 m around which 4500 turns of a wire are wound. If the current in the wire Is 10 A, what is the magnetic field, inside the core of the toriod.

A solenoid is 1.5 m long and 3.0 cm in diameter. It has 5 layers of winding of 750 turns each and carries a current of 6.0 A. What is the magnetic field at the centre?

A toroid has an inner radius 0.30 m and an outer radius of 0.32 m around which 4500 turns of a wire are wound. If the current in the wire Is 10 A, what is the magnetic field, in the empty space surrounded by the toriod.

A solenoid of length 0.5m has a radius of 1cm and is made up of 500 turns. It carries a current of 5A. What is the magnitude of the magnetic field inside the solenoid?

A toroid has an inner radius 0.30 m and an outer radius of 0.32 m around which 4500 turns of a wire are wound. If the current in the wire Is 10 A, what is the magnetic field, outside the toriod.

A circular coil of radius 3.0cm has 400 turns and carries a current of 1.5A. If axis makes an angle 60^(o) with the uniform magnetic field of 0.5 T in the space. Find the torque acting on the coil.

Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1A. What is the magnitude of the magnetic field at the centre of the cell?

A Circular coil of wire consisting of 100 turns, each of radius 8.0cm carries a current of 0.40A. What is the magnitude of the magnetic field bar B at the centre of the coil?