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A toroid is constructed of a magnetic material having a cross-sectional area of 2.5 cm and an effective length of 8 cm. There is also a short air gap 0.25 mm length and an effective area of 2.8 cm An mmf of 200 A t is applied to the magnetic circuit .If the total flux in the toroid of the magnetic material is infinite permeability the core reluctance in Henery is : Select one: O a. 7.1 x 10° O b. zero O . 5.1 x 10 O d. 7.1 x 10 -5

A toroid is constructed of a magnetic material having a cross-sectional area of 2.5 cm and an effective length of 8 cm. There is also a short air gap 0.25 mm length and an effective area of 2.8 cm An mmf of 200 A t is applied to the magnetic circuit .If the total flux in the toroid of the magnetic material is infinite permeability the core reluctance in Henery is : Select one: O a. 7.1 x 10° O b. zero O . 5.1 x 10 O d. 7.1 x 10 -5

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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A toroid is constructed of a magnetic material having a cross-sectional area of 2.5 cm and an effective length of 8 cm. There is also a short air gap 0.25 mm length and an effective area of 2.8 cm An mmf of 200 A · tis applied to the magnetic circuit .If the total flux in the toroid of the magnetic material is infinite permeability the core reluctance in Henery is : Select one: O a. 7.1 x 10° O b. zero 4. O c. 5.1 x 10° O d. 7.1 x 105 e. infinity
Transcribed Image Text:A toroid is constructed of a magnetic material having a cross-sectional area of 2.5 cm and an effective length of 8 cm. There is also a short air gap 0.25 mm length and an effective area of 2.8 cm An mmf of 200 A · tis applied to the magnetic circuit .If the total flux in the toroid of the magnetic material is infinite permeability the core reluctance in Henery is : Select one: O a. 7.1 x 10° O b. zero 4. O c. 5.1 x 10° O d. 7.1 x 105 e. infinity
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