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Author Question: A step-up transformer steps up voltage by ten times. If voltage input is 120 volts, voltage output ... (Read 62 times)

BRWH

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on: Jul 29, 2018
A step-up transformer steps up voltage by ten times. If voltage input is 120 volts, voltage output is
 
  A) 60 V.
  B) 120 V.
  C) 1200 V.
  D) 12000 V.
  E) none of the above

Question 2

An iron core in a transformer
 
  A) guides magnetic field lines.
  B) shields unwanted external electric or magnetic fields.
  C) separates the primary and secondary regions.
  D) reduces energy losses.


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gasdhashg

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


BRWH

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Reply 2 on: Jul 29, 2018
Wow, this really help

helenmarkerine

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Reply 3 on: Yesterday
Gracias!

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