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Author Question: A transformer is to be designed to increase the 30 kV (rms) output of a generator to the ... (Read 13 times)

lunatika

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on: Jul 28, 2018
A transformer is to be designed to increase the 30 kV (rms) output of a generator to the transmission line voltage of 345 kV (rms). If the primary winding has 60 turns, how many turns must the secondary have?
 a. 57
  c. 690
  b. 6900
  d. 11

Question 2

A sound intensity of 70 dB is observed at a distance d from the source of sound. What sound intensity would be observed at a distance 2d from the source?
 a. 68 dB
  c. 64 dB
  b. 67 dB
  d. 62 dB


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Tonyam972

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

C

Answer to Question 2

C


lunatika

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Reply 2 on: Jul 28, 2018
:D TYSM

Joy Chen

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Reply 3 on: Yesterday
Wow, this really help

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