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Author Question: In a synchronous AC motor, the speed of the motor is controlled by changing the ________ in the ... (Read 139 times)

colton

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on: Jun 23, 2018
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


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strudel15

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Reply #1 on: Jun 23, 2018
Answer to Question 1

C

Answer to Question 2

B


colton

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Reply 2 on: Jun 23, 2018
Excellent

okolip

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Reply 3 on: Yesterday
Gracias!

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