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83. The energy stored when the current is
i
is
2
1
2
B
UL
i
=
where
L
is the selfinductance.
The rate at which this is developed is
B
dU
di
Li
dt
dt
=
where
i
is given by Eq. 3041 and
/
di dt
is obtained by taking the derivative of that
equation (or by using Eq. 3037).
Thus, using the symbol
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 Spring '08
 Any
 Physics, Current, Inductance, Energy

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