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Author Question: A 25-mH inductor is connected in series with a 20- resistor through a 15-V dc power supply and a ... (Read 114 times)

dejastew

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  • Posts: 562
on: Jul 29, 2018
A 25-mH inductor is connected in series with a 20- resistor through a 15-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the current when t = 2.0 ms?
 
  A)
 
  0.40 A
  B)
 
  0.50 A
  C)
 
  0.60 A
  D)
 
  0.70 A
  E)
 
  0.80 A

Question 2

An LR circuit consists of a 35-mH inductor, a resistance of 12 ohms, an 18-V battery, and a switch. What is the current 5.0 ms after the switch is closed?
 
  A)
 
  5.0 A
  B)
 
  0.27 A
  C)
 
  0.053 A
  D)
 
  0.75 A
  E)
 
  1.2 A


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Anonymous

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

C

Answer to Question 2

E


dejastew

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  • Posts: 562
Reply 2 on: Jul 29, 2018
Gracias!

miss_1456@hotmail.com

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Reply 3 on: Yesterday
Excellent

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