A magnetic ring has a mean circumference of 20 cm and a cross sectional area of 100 cm² and has 800 number of turns of wire. When the exciting current is 5A, the flux is 2w mWb. The relative permeability of iron is.

A magnetic ring has a mean circumference of 20 cm and a cross sectional area of 100 cm² and has 800 number of turns of wire. When the exciting current is 5A, the flux is 2w mWb. The relative permeability of iron is.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

...

A magnetic ring has a mean
circumference of 20 cm and a cross
sectional area of 100 cm² and has
800 number of turns of wire. When the
exciting current is 5A, the flux is 2w
mWb. The relative permeability of iron is.

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