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5. A mild steel closed magnetic circuit has a mean length of 75 mm and a cross-sectional area of 320.2 mm2. A current of 0.40 A flows in a coil wound uniformly around the circuit and the flux produced is 200 µWb. If the relative permeability of the steel at this value of current is 400 find (a) the reluctance of the material and (b) the number of turns of the coil.

5. A mild steel closed magnetic circuit has a mean length of 75 mm and a cross-sectional area of 320.2 mm2. A current of 0.40 A flows in a coil wound uniformly around the circuit and the flux produced is 200 µWb. If the relative permeability of the steel at this value of current is 400 find (a) the reluctance of the material and (b) the number of turns of the coil.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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5. A mild steel closed magnetic circuit has a mean length of 75 mm and a cross-sectional area of 320.2 mm2. A current of 0.40 A flows in a coil wound uniformly around the circuit and the flux produced is 200 µWb. If the relative permeability of the steel at this value of current is 400 find (a) the reluctance of the material and (b) the number of turns of the coil.
Transcribed Image Text:5. A mild steel closed magnetic circuit has a mean length of 75 mm and a cross-sectional area of 320.2 mm2. A current of 0.40 A flows in a coil wound uniformly around the circuit and the flux produced is 200 µWb. If the relative permeability of the steel at this value of current is 400 find (a) the reluctance of the material and (b) the number of turns of the coil.
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