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Author Question: The primary winding of an electric train transformer has 200 turns, and the secondary has 50 . If ... (Read 65 times)

fnuegbu

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on: Jul 28, 2018
The primary winding of an electric train transformer has 200 turns, and the secondary has 50 . If the input voltage is 120 V(rms), what is the output voltage?
 a. 30 V
  c. 10 V
  b. 15 V
  d. 480 V

Question 2

The intensity level of sound 30 m from a jet airliner is 120 dB. At what distance from the airplane will the sound intensity level be a tolerable 100 dB? (Assume spherical spreading of sound.)
 a. 60 m
  c. 300 m
  b. 90 m
  d. 400 m


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Fayaz00962

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

C


fnuegbu

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

bdobbins

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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