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In figure, a magnetic flux of F is generated with a constant current of i.  The core material used has a relative permeability of 4000. Assuming that the mean cross sectional area that the magnetic flux passing through in core is A=4 [cm2] and there is no fringing in air gap, N= 1000 turns and i=10 [A], lair=2 [mm]. what is the reluctance in air gap? what is the total reluctance? what are the flux and flux density in air gap? Remember: µ0 = 4πx10-7 Answers: Rair =  ___________ [At/Wb] Rtotal = _________ [At/Wb] φ =  ___________ [Wb] B =  ________[T]

In figure, a magnetic flux of F is generated with a constant current of i.  The core material used has a relative permeability of 4000. Assuming that the mean cross sectional area that the magnetic flux passing through in core is A=4 [cm2] and there is no fringing in air gap, N= 1000 turns and i=10 [A], lair=2 [mm]. what is the reluctance in air gap? what is the total reluctance? what are the flux and flux density in air gap? Remember: µ0 = 4πx10-7 Answers: Rair =  ___________ [At/Wb] Rtotal = _________ [At/Wb] φ =  ___________ [Wb] B =  ________[T]

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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In figure, a magnetic flux of F is generated with a constant current of i.  The core material used has a relative permeability of 4000. Assuming that the mean cross sectional area that the magnetic flux passing through in core is A=4 [cm2] and there is no fringing in air gap, N= 1000 turns and i=10 [A], lair=2 [mm].

  • what is the reluctance in air gap?
  • what is the total reluctance?
  • what are the flux and flux density in air gap?

Remember: µ0 = 4πx10-7

Answers:
Rair =  ___________ [At/Wb]
Rtotal = _________ [At/Wb]
φ =  ___________ [Wb]
B =  ________[T]

 

200 [mm] 2 [mm] 1000 turns 100 [mm] 10 [A] [ww] 081
Transcribed Image Text:200 [mm] 2 [mm] 1000 turns 100 [mm] 10 [A] [ww] 081
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