A.Current and voltage may be in phase
B.Current may lead the voltage
C.Current may lag the voltage
D.All of the above
您可能感興趣的試卷
你可能感興趣的試題
A.directly as its length and inversely as its cross-sectional area
B.inversely as its length and directly as its cross-sectional area
C.directly as its length and directly as its cross-sectional area
D.inversely as its length and inversely as its cross-sectional area
A.Frequency meter
B.Ohmmeter
C.Induction voltage regulator
D.Current transformer governor

最新試題
Under MARPOL Code the ship to which it applies has to carry ()
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
Which of the following items don’t belong to dock repair works?()
The condensers located in various stages of a flash evaporator are cooled by()
The treatment of the fuel oils involves storage, heating, filtering and()