A magnet is shown in Figure below. The relative permeability of the soft Fe yoke is 3000.
If a current I = 1 A is to produce a field of about 100 gauss in the gap, how many turns are required? Constraints: consider a closed path whose horizontal length and height get comparable to those of the magnet.
Ampere’s circuital law에 따르면 마그넷 내부의 H : B / (μr x μ0) 마그넷 외부의 H : B / μ0 자석을 둘러싸도록 폐곡선을 정의하고 이를 선적분 한다....
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Ampere
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circuital
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law
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magnet
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magnetic
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전자기학
원문 링크 : [복사열전달] Ampere’s circuital law
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