QI. An iron ring has a cross section of 3 cm2 and a mean diameter of 25 cm and relative permeability of 3438. an air-gap of 0.4 mm has been cut a cross the section of the ring, find the reluctance of this core. This core is wound with a coil of 200 turns, find the current passed if the total magnetic flux is 0.5 mwb. Neglecting the magnetic leakage and fringing. 200 turns Air-gap

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QI. An iron ring has a cross section of 3 cm2 and a mean diameter of 25
cm and relative permeability of 3438. an air-gap of 0.4 mm has been cut a
cross the section of the ring, find the reluctance of this core.
This core is wound with a coil of 200 turns, find the current passed if the
total magnetic flux is 0.5 mwb. Neglecting the magnetic leakage and
fringing.
200 turns
Air-gap
Transcribed Image Text:QI. An iron ring has a cross section of 3 cm2 and a mean diameter of 25 cm and relative permeability of 3438. an air-gap of 0.4 mm has been cut a cross the section of the ring, find the reluctance of this core. This core is wound with a coil of 200 turns, find the current passed if the total magnetic flux is 0.5 mwb. Neglecting the magnetic leakage and fringing. 200 turns Air-gap
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