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Author Question: An ac signal is applied across a 40-mH inductor and a 100- resistor. If the power factor of this ... (Read 40 times)

Marty

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An ac signal is applied across a 40-mH inductor and a 100- resistor. If the power factor of this circuit is 0.40, what is the frequency of the ac signal?
 
  A) 160 Hz B) 910 Hz C) 410 Hz D) 600 Hz E) 200 Hz

Question 2

A rotating diatomic molecule has rotational quantum number l. The energy DIFFERENCE between adjacent energy levels
 
  A) is independent of l. B) decreases as l increases.
  C) is the same for all changes in l. D) increases as l increases.



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courtney_bruh

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Answer to Question 1

B

Answer to Question 2

D





 

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