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Author Question: A solenoid of length 5.0 cm has a cross sectional area of 1.0 cm2 and has 300 uniformly spaced ... (Read 89 times)

cnetterville

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A solenoid of length 5.0 cm has a cross sectional area of 1.0 cm2 and has 300 uniformly spaced turns. The solenoid is wrapped in 180 turns of insulated wire resulting in a mutual inductance of
 
  A)
 
  1.1 H.
  B)
 
  1.4  10-2 H.
  C)
 
  11 H.
  D)
 
  1.4  10-4 H.
  E)
 
  110 H.

Question 2

The monthly (30 days) electric bill included the cost of running a central air-conditioning unit for 2.0 hr/day at 5000 W, and a series connection of ten 60 W light bulbs for 5.0 hr/day.
 
  How much did these items contribute to the cost of the monthly electric bill if electricity costs 8.0 per kWh? A)
 
  21.30
  B)
 
  39.50
  C)
 
  31.20
  D)
 
  13.20
  E)
 
  12.30



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blazinlyss

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Answer to Question 1

D

Answer to Question 2

C




cnetterville

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Reply 2 on: Jul 29, 2018
:D TYSM


TheNamesImani

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Reply 3 on: Yesterday
Gracias!

 

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