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Author Question: One time constant after an RL circuit has its switch closed, how does the current I in it compare to ... (Read 135 times)

LaDunn

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on: Jul 28, 2018
One time constant after an RL circuit has its switch closed, how does the current I in it compare to the maximum current Imax that occurs for this circuit?
 a. I > Imax/2
  b. I = Imax/2
  c. I < Imax/2
  d. Without knowing R and L, this cannot be determined.

Question 2

Bats can detect small objects such as insects that are of a size approximately that of one wavelength. If bats emit a chirp at a frequency of 50 kHz, and the speed of sound waves in air is 330 m/s, what is the smallest size insect they can detect?
 a. 1.5 mm
  c. 5.5 mm
  b. 3.7 mm
  d. 6.6 mm


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cat123

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

D


LaDunn

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Reply #2 on: Jul 28, 2018
Thanks


cat123

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Reply #3 on: Jul 28, 2018
Welcome :)


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