armature current is reduced

flux is reduced

line current is reduced

none of these

it will continue to run at the rated speed

its speed will become very high

the motor will stop

its speed will reduce

d.c. series motor

d.c. shunt motor

d.c. series generator

d.c. shunt generator

Shunt motor

Cumulative compound motor

Series motor

Compound motor

Hopkinson's test

Swinburne's test

Retardation test

None of these