The fluctuating mangnetic field cutting across the turns or loops of wire of the secondary coil sets up an electrical pressure or voltage in these loops.

 
  • 起伏變化的磁場(chǎng)橫向切割著(zhù)次極線(xiàn)圈的線(xiàn)匝和線(xiàn)環(huán)時(shí),會(huì )在這些線(xiàn)環(huán)中引起電壓。
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