- Do typical DC generators use commutators? ______________
- Do typical DC motors use commutators? __________
- Are the field windings of a typical (non-permanent-magnet) DC motor stationary? ___________
- In a shunt-connected DC motor, is the field winding connected in parallel with the armature winding or in series? ____________
- Which has the higher starting torque, a DC series motor or a DC shunt motor? _____________
- If you decrease the field current in a shunt-connected DC motor, does the motor slow down? ___________
- Can a universal motor be used with either DC or AC? __________
- Can universal motors reach high speeds (greater than the 1725 RPM typical of small AC motors)? ____________
- Can the speed of an induction (squirrel-cage) AC motor be altered over a wide range (such as 100% to 50%) by changing the field current? _____________
- For the relay circuit below, if B is closed, and A is pressed and then released, will the light be on? _________
- For the relay circuit below, if B is open, and A is pressed and then released, will the light be on? _________
