Answered: JUST CHOOSE THE RIGHT CHOICE Since it…

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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JUST CHOOSE THE RIGHT CHOICE

Since it is known that the magnetic permeability of the steel rod and the core of the electromagnet and the cross-sections are the same, the steps to be passed in order to find the current value that will lift the steel rod with a weight of G = 1 ton are correctly expressed in which option. μrpol=1;μrnuve=200;μr steel=200

1-) S=75.10-4; m2 Rnuve+Rsteel=(450+2*75+500)10-3/(200μoS) ;Rpoly=10-3/(200μoS);

2-) S=75.10-4; m2 Rnuve+Rsteel=(450+2*75+500)10-3/(200μoS) ;Rpoly=2*10-3/μoS);

3-) S=75.10-4; m2 Rnuve+Rsteel=(2*500+2*100)10-3/(200μoS) ;Rpoly=2*10-3/(200μoS);

4-)Rtotal=Rnuve+Rcelik+Rpoly;

5-) Φ is found from G=Φ2/(μoS).

6-) Φ is found from G=0.5o2/(μoS).

7-) There is I current from Φ=NI/Rtotal.

8-) Φ=NIRtotal I current is found.

A. 2,4,5,7

B. 2,4,6,8

C. 3,4,6,8

D. 1,4,5,7

a=500 mm
b=50 mm
c=150 mm
d=100 mm
1=1 mm
N=1200 turns
μ-200μο
b
polymer
polymer
steel
bar
u=200µ0
b
G
Orio07=r

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