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Author Question: A wire of a certain length, carrying a current of 2.0 A, is placed perpendicular to a magnetic field ... (Read 136 times)

nummyann

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on: Jul 29, 2018
A wire of a certain length, carrying a current of 2.0 A, is placed perpendicular to a magnetic field of strength 0.20 T. If the wire experiences a force of 0.40 N what is the length of the wire?
 
  A)
 
  2.0 m
  B)
 
  3.0 m
  C)
 
  1.0 m
  D)
 
  20 m
  E)
 
  40 m

Question 2

The windings of a DC motor have a resistance of 6.00 . The motor operates on 120 V AC, and when running at full speed it generates a back emf of 105 V. What is the starting current of the motor?
 
  A)
 
  2.50 A
  B)
 
  5.00 A
  C)
 
  17.5 A
  D)
 
  20.0 A
  E)
 
  37.5 A


yahahah24021

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

C

Answer to Question 2

D


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nummyann

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Reply #2 on: Jul 29, 2018
TY


yahahah24021

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Reply #3 on: Jul 29, 2018
You're welcome


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