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Author Question: What is the reactance of a 20-mH inductor at a frequency of 60 Hz? A) 0.13 B) 1.2 C) 7.5 m D) ... (Read 40 times)

HCHenry

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on: Jul 29, 2018
What is the reactance of a 20-mH inductor at a frequency of 60 Hz?
 
  A) 0.13  B) 1.2  C) 7.5 m D) 1.2 m E) 7.5

Question 2

A series circuit consists of a 2.5-F capacitor, a 7.6-M resistor, and an ideal 6.0-V dc power source.
 
  (a) What is the time constant for charging the capacitor?
  (b) What is the potential difference across the capacitor 25 s after charging begins?


xiaomengxian

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

E

Answer to Question 2

(a) 19 s (b) 4.4 V


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HCHenry

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Reply #2 on: Jul 29, 2018
Thanks


xiaomengxian

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Reply #3 on: Jul 29, 2018
Welcome :)


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