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Author Question: Liquid Crystal Displays (LCDs) depend upon which of the following for their operation? A) ... (Read 82 times)

abarnes

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Liquid Crystal Displays (LCDs) depend upon which of the following for their operation?
 
  A) coherence
  B) polarization
  C) diffraction
  D) dichroism
  E) thin film interference

Question 2

American power plants usually supply 120. volts AC:
 
  (a) at what frequency?
  (b) at what maximum voltage?



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nyrave

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Answer to Question 1

B

Answer to Question 2

(a) 60. Hz
(b) 170. volts if rms = 120. V





 

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