你可能感興趣的試題

A.放有鐵芯的線圈
B.放有銅芯的線圈
C.放在空氣中的線圈
D.一樣大

A.400mm
B.500mm
C.600mm
D.800mm

A.0.8m
B.lm
C.1.2m
D.1.5m

A.5m
B.6m
C.7m
D.7.5m

A.5m
B.6m
C.7m
D.7.5m

A.100mm
B.150mm
C.200mm
D.250mm

A.100mm
B.150mm
C.200mm
D.250mm

A.30°
B.35°
C.40°
D.45°

A.0.8m
B.0.45/0.6m
C.1m
D.1.2m

A.20mm
B.30mm
C.40mm
D.50mm