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Exam (elaborations)
TEST BANK FOR Fitzgerald Kingsley Electric Machinery 7th Edition By Stephen D. Umans
TEST BANK FOR Fitzgerald Kingsley Electric Machinery 7th Edition By Stephen D. Umans 
PROBLEM SOLUTIONS: Chapter 1 
Problem 1-1 
Part (a): 
Rc = 
lc 
μAc 
= 
lc 
μrμ0Ac 
= 0 A/Wb 
Rg = 
g 
μ0Ac 
= 5.457 × 106 A/Wb 
Part (b): 
 = 
NI 
Rc + Rg 
= 2.437 × 10−5 Wb 
Part (c): 
 = N = 2.315 × 10−3 Wb 
Part (d): 
L = 
 
I 
= 1.654 mH 
Problem 1-2 
Part (a): 
Rc = 
lc 
μAc 
= 
lc 
μrμ0Ac 
= 2.419 × 105 A/Wb 
Rg = 
g 
μ0Ac 
= 5.457 × 106 A/Wb 
 
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