A Rowland ring of means radius 16 cm has 1000 turns of wire closely wound on ferromagnetic core of relative permeability 400. What is the magnetic induction B within the core for a magnetizing current of 1A?

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A Rowland ring of means radius 16 cm
has 1000 turns of wire closely wound on
ferromagnetic core of relative permeability
400. What is the magnetic induction B within
the core for a magnetizing current of 1A?
Transcribed Image Text:A Rowland ring of means radius 16 cm has 1000 turns of wire closely wound on ferromagnetic core of relative permeability 400. What is the magnetic induction B within the core for a magnetizing current of 1A?
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