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A cast steel ring has a circular cross-section of 3 cm in diameter and a mean circumference of 80 cm. A 1 mm air-gap is cut out in the ring which is wound with a coil of 600 turns. (a) Estimate the current required to establish a flux of 0.75 mWb in the air-gap. Neglect fringing and leakage.

A cast steel ring has a circular cross-section of 3 cm in diameter and a mean circumference of 80 cm. A 1 mm air-gap is cut out in the ring which is wound with a coil of 600 turns. (a) Estimate the current required to establish a flux of 0.75 mWb in the air-gap. Neglect fringing and leakage.

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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Electrical engineering exercise questions 3.2

H (AT/m) 200 B (T) 0.10 400 0.32 600 800 0.60 0.90 1000 1200 1.08 1.18 1400 1600 1.27 1.32 1800 2020 1.36 1.40
Transcribed Image Text:H (AT/m) 200 B (T) 0.10 400 0.32 600 800 0.60 0.90 1000 1200 1.08 1.18 1400 1600 1.27 1.32 1800 2020 1.36 1.40
A cast steel ring has a circular cross-section of 3 cm in diameter and a mean circumference of 80 cm. A 1 mm air-gap is cut out in the ring which is wound with a coil of 600 turns. (a) Estimate the current required to establish a flux of 0.75 mWb in the air-gap. Neglect fringing and leakage.
Transcribed Image Text:A cast steel ring has a circular cross-section of 3 cm in diameter and a mean circumference of 80 cm. A 1 mm air-gap is cut out in the ring which is wound with a coil of 600 turns. (a) Estimate the current required to establish a flux of 0.75 mWb in the air-gap. Neglect fringing and leakage.
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