If the resistance of a circuit is cut in half and the applied voltage is kept constant, the current flow will be （）.

A.voltage regulator
B.reverse power relay
C.reverse current relay
D.governor control switch

A.field excitation of both units is adjusted
B.governors of both units are adjusted
C.phase sequence is altered
D.kilowatt load is evenly divided

A.are less expensive
B.require less maintenance
C.can be started across the line
D.offer a more effective means of controlling speed