Discuss in detail Hysteresis Loop. A coil of 500 turns and resistance of 20 ohm is wound uniformly on an iron ring of mean circumference 50 cm and cross-sectional area of 4 cm. It is connected to a 24-v d.c. supply. Under this condition, the relative permeability of iron is 800. Calculate :1) MMF of coil and magnetizing force. 2) total flux in the iron 3) reluctance of the ring.
Answers
Answer:
A Rowland ring is formed of ferromagnetic material. It is circular in cross-section, with an inner radius of 5.0 cm and an outer radius of 6.0 cm, and is wound with 400 turns of wire. (a) What current must be set up in the windings to attain a toroidal field of magnitude B0=0.20 mT? (b) A secondary coil wound around the toroid has 50 turns and resistance 8.0Ω. If, for this value of B0, we have BM=800B0, how much charge moves through the secondary coil when the current in the toroid windings is turned on?
A Rowland ring is formed of ferromagnetic material. It is circular in cross-section, with an inner radius of 5.0 cm and an outer radius of 6.0 cm, and is wound with 400 turns of wire. (a) What current must be set up in the windings to attain a toroidal field of magnitude B0=0.20 mT? (b) A secondary coil wound around the toroid has 50 turns and resistance 8.0Ω. If, for this value of B0, we have BM=800B0, how much charge moves through the secondary coil when the current in the toroid windings is turned on?