Right angles to each other
40 degrees to each other
45 degrees to each other
60 degrees to each other
Joule
Newton
Newton - metre
Watt
Centrifugal force
Speed
Twisting
Torque
DC series motor
DC shunt motor
DC differential compound motor
DC cumulative compound motor
E1 and E2
A1 and A2
D1 and D2
F1 and F2