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Magnetic Fields Shrinking Radius Help Please

  • Thread starter SWFanatic
  • Start date
12
0
1. Homework Statement
An elastic conducting material is stretched into a circular loop of 20.0 cm radius. It is placed with its plane perpendicular to a uniform 0.900 T magnetic field. When released, the radius of the loop starts to shrink at an instantaneous rate of 78.0 cm/s. What emf is induced in the loop at that instant?


2. Homework Equations



3. The Attempt at a Solution
I am very lost in this section. Any help would be appreciated....just a starting point please! Thanks
 

Answers and Replies

1,860
0
What is the definition of flux? How does EMF relate to flux?
 

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