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A Rowland ring óf are 11 cm and 12 cm respectively. If a current of 0.7 A is passed through its coils, the magnetie arT Whot ir the (relative) permcability of the core?

A Rowland ring óf are 11 cm and 12 cm respectively. If a current of 0.7 A is passed through its coils, the magnetie arT Whot ir the (relative) permcability of the core?

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A Rowland ring of ferromagnetic material has 3000 turns. The inner and outer radi of the ning are 11 cm and 12 cm respectively. If a current of 0.7 A is passed through its coils, the magnetic fiold produced in the core is 2.5 T. What is the (relative) permcability of the core?
Transcribed Image Text:A Rowland ring of ferromagnetic material has 3000 turns. The inner and outer radi of the ning are 11 cm and 12 cm respectively. If a current of 0.7 A is passed through its coils, the magnetic fiold produced in the core is 2.5 T. What is the (relative) permcability of the core?
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