一电源变压器。原边绕组有550匝,接220V电压;副边电压是36V,接36W纯电阻负载,则原边电流I(来学网)和副边绕组匝数N为(  )。
  • A.
    (来学网)6.1匝,0.01A
  • B.
    (来学网)90匝,0.16A
  • C.
    (来学网)90匝,0.01A
  • D.
    (来学网)6.1匝,0.16A