4.4 A cast steel ring having a radius of 150 mm is uniformly wound with 3000 turns of wire. When a current of 1.25 A is passed through the coil a flux density of 1.4 T is set up in the steel. 4.4.1 Calculate the magnetizing force; 4.4.2 Determine the relative permeability of the steel under these conditions. ... ......*.......

4.4 A cast steel ring having a radius of 150 mm is uniformly wound with 3000 turns of wire. When a current of 1.25 A is passed through the coil a flux density of 1.4 T is set up in the steel. 4.4.1 Calculate the magnetizing force; 4.4.2 Determine the relative permeability of the steel under these conditions. ... ......*.......

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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A coil with a material which is having permittivity same as air having number of turns N=500. Current flowing through coil is 4A. Length of material is 2cm with cross sectional area of 10cm2. What is value of magnetic flux.
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3. A magnetic circuit of cross-sectional area 0.4 cm2 consists of one part 3 cm long, of material having relative permeability 1200, and a second part 2 cm long of material having relative permeability 750. With a 100 turn coil carrying 2 A, find the value of flux existing in the circuit.
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3.4The length of a magnetic circuit in a moving iron instrument is 300mm. The coil around the soft-iron core has 360 turns and takes a current of 1.75 A. The core is square in section with sides of 20 mm. Take the relative permeability of soft iron as 1100. 3.4.1 Determine the magnetomotive force in the core 3.4.2 Determine the field strength; 3.4.3 Determine the flux denisty 3.4.4 Determine the total flux;