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Author Question: Calculate the current through a 10.0-m long 22 gauge (the radius is 0.321 mm) nichrome wire if it is ... (Read 39 times)

s.tung

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on: Jul 29, 2018
Calculate the current through a 10.0-m long 22 gauge (the radius is 0.321 mm) nichrome wire if it is connected to a 12.0-V battery. (The resistivity of nichrome is 100  10-8 m.)
 
  A)
 
  17.5 A
  B)
 
  30.9 A
  C)
 
  61.8 A
  D)
 
  0.388 A
  E)
 
  0.776 A

Question 2

What is the net power that a person with surface area of 1.20 m2 radiates if his emissivity is 0.895, his skin temperature is 300 K, and he is in a room that is at a temperature of 290 K? The Stefan-Boltzmann constant is 5.
 
  67  10-8 W/(m2K4). A)
 
  60.3 W
 
  B)
 
  62.6 W
 
  C)
 
  65.7 W
 
  D)
 
  68.4 W
 
  E)
 
  64.8 W


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leannegxo

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

D

Answer to Question 2

B


s.tung

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  • Posts: 577
Reply 2 on: Jul 29, 2018
Gracias!

lkanara2

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Reply 3 on: Yesterday
Excellent

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