Answered: A core with three legs is shown in…

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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Q1.

A core with three legs is shown in Figure. Its depth is 5 cm, and there are 100 turns on the leftmost leg. The relative permeability of the core can be assumed to be 2000 and constant. What flux exists in each of the three legs of the core? What is the flux density in each of the legs? Assume a 5% increase in the effective area of the air gap due to fringing effects.

Q1.
A core with three legs is shown in Figure. Its depth is 5 cm, and there are 100 turns on the leftmost leg.
The relative permeability of the core can be assumed to be 2000 and constant. What flux exists in each
of the three legs of the core? What is the flux density in each of the legs? Assume a 5% increase in the
effective area of the air gap due to fringing effects.
2 A
9 cm
25 cm-
100 turns
+
15 cm
+
25 cm-
-0.05 cm
9 cm
9 cm
25 cm
9 cm
Core depth = 5 cm

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