(b) Figure 1 shows a magnetic core, with cross-sectional area of 9 cm², is made from cast iron and steel-cobalt composite with the mean length of 33 cm and 30 cm, respectively. A current of 1.5 A flows through the coil. If the total flux is 0.8 mWb and assuming the relative permeability of the cast iron is 2000. Determine: Cast iron Steel-cobalt composite 135 turns Figure 1 (i) the relative permeability of the steel-cobalt composite. (ii) the new coil current required to maintain the same flux if a 3 mm air gap is made in the steel-cobalt composite. Assume the fringing effect and flux leakage can be neglected.

(b) Figure 1 shows a magnetic core, with cross-sectional area of 9 cm², is made from cast iron and steel-cobalt composite with the mean length of 33 cm and 30 cm, respectively. A current of 1.5 A flows through the coil. If the total flux is 0.8 mWb and assuming the relative permeability of the cast iron is 2000. Determine: Cast iron Steel-cobalt composite 135 turns Figure 1 (i) the relative permeability of the steel-cobalt composite. (ii) the new coil current required to maintain the same flux if a 3 mm air gap is made in the steel-cobalt composite. Assume the fringing effect and flux leakage can be neglected.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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