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(d) The trend in our answers to parts (a), (b) and (c) lead us to expect the smaller the
resistance then the smaller to value of
t
.
If we consider what happens to Eq. 3039 in the
extreme case where
R
→
0, we find that the timederivative of the current becomes equal
to the emf divided by the selfinductance, which leads to a linear dependence of current
on time:
i
= (
ε
/L
)
t
.
In fact, this is what one have obtained starting from Eq. 3041 and
considering its
R
→
0 limit.
Thus, this case seems selfconsistent, so we conclude that it
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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, Current

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