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Author Question: At what frequency is the reactance of a 20.0-mH inductor equal to 120 ? A) 318 Hz B) 637 Hz C) ... (Read 34 times)

asmith134

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At what frequency is the reactance of a 20.0-mH inductor equal to 120 ?
 
  A) 318 Hz
  B) 637 Hz
  C) 796 Hz
  D) 955 Hz
  E) 1110 Hz

Question 2

What is the wavelength of the photon emitted when an electron in a hydrogen atom which is in the initial state n = 4 jumps to the final state n = 2? (c = 3.00  108 m/s, h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J)
 
  A) 243 nm
  B) 486 nm
  C) 556 nm
  D) 312 nm
  E) 609 nm


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vickyvicksss

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asmith134

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Reply 2 on: Jul 29, 2018
Gracias!


frankwu0507

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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