A.2-10B.15-20C.25-30D.35-40
A.雜散損耗 B.銅耗 C.渦流損耗 D.磁滯損耗
A.E1/E2=N1/N2 B.E1/E2=N2/N1 C.E1/E2=N12/N22 D.無明顯規(guī)律