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()
( )
( )
(
)
3
21
11
(1
)
212
.
5
0
s
,
222
221
0H
z
nn
tT
n
T
nT
n
f
µ
−−
=+
−=
=
=−
×
where
n
= 1, 2, 3, 4,
…
. The earliest time is (
n
=1)
2.50 s.
t
=
(c) At
=
1
4
, the current and the magnetic field in the inductor reach maximum values
for the first time (compare steps
a
and
c
in Fig. 311). Later this will repeat every half
period (compare steps
c
and
g
in Fig. 311). Therefore,
(
)
)
2
1
2
1 1.25 s ,
42
4
L
TnT
T
tn
n
−
= − = −
where
n
= 1, 2, 3, 4,
…
. The earliest time is (
n
=1)
1.25 s.
t
=
4. (a) We recall the fact that the period is the reciprocal of the frequency. It is helpful to
refer also to Fig. 311. The values of
t
when plate
A
will again have maximum positive
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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, Charge

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