anonymous
  • anonymous
Suppose a magnetic field of 1.0 T is applied to an area within a circular loop of wire. The strength of the field is then increased to 4.0 T. By what factor is the magnetic flux changed? A. 2 B. 4 C. 0.5 D. 0.25
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Michele_Laino
  • Michele_Laino
magnetic flux is given by the subsequent formula: \[\Large \Phi = BS\]
Michele_Laino
  • Michele_Laino
where S is the area enclosed by our circular loop
anonymous
  • anonymous
ok! what do we plug in?

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Michele_Laino
  • Michele_Laino
so we have: \[\Large \begin{gathered} {\Phi _1} = 1 \times S = S \hfill \\ {\Phi _2} = 4 \times S = 4S \hfill \\ \hfill \\ \frac{{{\Phi _2}}}{{{\Phi _1}}} = \frac{{4S}}{S} = 4 \hfill \\ \end{gathered} \]
anonymous
  • anonymous
ohhh so our solution is 4? :O
Michele_Laino
  • Michele_Laino
yes!
anonymous
  • anonymous
yay! thanks!:)
Michele_Laino
  • Michele_Laino
:)

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