Consider the structure below. The steel is infinitely permeable. Depth into the page is 0.5"; width w = 0.25". Coil 1 has 10 turns, coil 2 has 20 turns, and coil 3 has 30 turns. We will assume that x is small. Be sure to convert everything to meters.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Consider the structure below. The steel is infinitely permeable. Depth into the page is
0.5"; width w = 0.25". Coil 1 has 10 turns, coil 2 has 20 tums, and coil 3 has 30 turns. We
will assume that x is small. Be sure to convert everything to meters.
→ 2w -
a. Draw the magnetic equivalent circuit. Define reluctances symbolically (which
may be useful later) and numerically.
41 [4. 4. L T
L, L, i
b. Analyze the structure to find À =Li , that is, 2
32
where all inductances are functions of x.
c. Determine the co-energy, W. (i,.ix).
d. Determine the force, fna
Transcribed Image Text:Consider the structure below. The steel is infinitely permeable. Depth into the page is 0.5"; width w = 0.25". Coil 1 has 10 turns, coil 2 has 20 tums, and coil 3 has 30 turns. We will assume that x is small. Be sure to convert everything to meters. → 2w - a. Draw the magnetic equivalent circuit. Define reluctances symbolically (which may be useful later) and numerically. 41 [4. 4. L T L, L, i b. Analyze the structure to find À =Li , that is, 2 32 where all inductances are functions of x. c. Determine the co-energy, W. (i,.ix). d. Determine the force, fna
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