(来学网)选择电源线时,应使电源线的阻值RL、电源电阻Rm和电源变压器内阻R0满足关系()
  • A.
    (来学网)RL≤Rm+R0
  • B.
    (来学网)RL≤Rm-R0
  • C.
    (来学网)RL=Rm-R0
  • D.
    (来学网)RL>Rm+R0
  • E.
    (来学网)RL=Rm+R0