Answered: ). The current in a conductor on the…

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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(1). The current in a conductor on the armature of a dc motor is 300A. The flux under the poles is 850μWb.
The area per pole is 700 mm2
. The length of the conductor on the armature is 640mm. Calculate the force
exerted on the conductor.

Question 3.4

(3.4)The 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 total flux

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