38. From the “kink” in the graph of Fig. 3061, we conclude that the radius of the circular
region is 2.0 cm.
For values of
r
less than that, we have (from the absolute value of Eq.
3020)
2
()
(2
)
B
d
dBA
dB
Er
A
r
a
dt
dt
dt
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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