A magnetic core with an air gap is shown below. For a relative permeability is 3500, and the space free permeability is 4πx 107 H/m, find the reluctance of the gap, assuming a 4 percent increase in the effective air-gap area to account for fringing. 5 cm gap 0.15 cm 5 cm 40 cm 5 cm 20 cm N Answer: Rgap core depth = 10 cm KA.t./Wb. 15 cm

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A magnetic core with an air gap is shown below.
For a relative permeability is 3500, and the space free permeability is 4πx 107 H/m,
find the reluctance of the gap, assuming a 4 percent increase in the effective air-gap area to
account for fringing.
5 cm
5 cm
40 cm
5 cm
20 cm
gap
0.15 cm
N
Answer:
Rgap
core depth = 10 cm
KA.t./Wb.
15 cm
Transcribed Image Text:A magnetic core with an air gap is shown below. For a relative permeability is 3500, and the space free permeability is 4πx 107 H/m, find the reluctance of the gap, assuming a 4 percent increase in the effective air-gap area to account for fringing. 5 cm 5 cm 40 cm 5 cm 20 cm gap 0.15 cm N Answer: Rgap core depth = 10 cm KA.t./Wb. 15 cm
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