In a synchronous AC motor, the speed of the motor is controlled ...

[colton]

In a synchronous AC motor, the speed of the motor is controlled by changing the ________ in the stator.
 
  A) Pulse width B) Voltage C) Frequency D) Temperature

Question 2

A PTC circuit protector prevents excessive current flow in a circuit by __________.
 
  A) Grounding the current B) Changing to a very high resistance
  C) Opening a set of contacts D) Burning open

[strudel15]

Answer to Question 1

C

Answer to Question 2

B

[colton]

YES! Correct, THANKS for helping me on my review

[bdobbins]

Thanks for the timely response, appreciate it