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Biology with MasteringBiology™ (8th Edition)

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  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.  1) 
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A circular  conducting  loop with a  radius of   and a  small gap  filled with a    resistor is  oriented in  the   If  a magnetic  field of    making an  angle of    with the    increases to   in   what is  the  magnitude  of the  current that  will be  caused to  flow in the  conductor? 
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1)  _______  A) 
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0.088 A 
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B) 
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0.13 A 
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C) 
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0.15 A 
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D)  0. 0  
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What is the  radius of a  tightly  wound  solenoid of  circular  cross - section  that has  180  turns if a  change in its  internal  magnetic  field of    causes a   current  to flow? The  resistance of  the circuit  that contains  the solenoid  is   The  only emf  source for  the circuit is  the induced  emf. 
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2)  _______  A) 
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0.25 m 
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B) 
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0.54 m 
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C) 
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0.014 m 
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D)  0. 0  
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A closed - loop  conductor  with radius   is  located in a  changing  magnetic  field. If the  maximum  emf induced  in the loop is   what  is the  maximum  rate at which  the magnetic  field  strength is  changing if  the magnetic  field is  oriented  perpendicula r to the plane  in which the  loop lies? 
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3)  _______  A) 
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1.0 T/s 
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B) 
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0.080 T/s 
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C) 
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0.16 T/s 
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D)  2. 0  
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A 2.0 m  conductor is  formed into  a square and  placed in the  horizontal   A  magnetic  field is  oriented   above  the  horizontal  with a  strength of   What  is the  magnetic  flux through  the  conductor? 
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4)  _______  A) 
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1.9 T   m
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B)  18 T  m
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1.1 T   m
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