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First   do   the   following   Wiley ‐ Plus   assignment:   Assignment   #31
After   completing   the   Wiley ‐ Plus,   in   your   homework   notebook,   complete   the   following   problems:
CH31   Questions   #   1,   2,   and   6
CH31   Problems   #   3,    6,   and   13.
To   check   your   work,   the   answers   to   the   odd   problems   are   in   the   back   of   the   book.
The   answers   to   the   even   problems   are:.
#6)    (a)

=   89   rad/s
(b)
(c)
T
C
=
=
7.0
2.5
x x
10
10
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2
5
s
F
Then   complete   the   attached   worksheets:   (Note:   the   above   problems   were   designed   to   ensure   you   have   the   skills   to   solve   the   worksheet   problems.
It   is   imperative   to   your   learning   of   the   problem   solving   technique   to   do   the   above   problems   BEFORE   attempting   the   worksheet   problems.
You   are   graded   on   both!
Homework   notebooks   are
graded.)

CH ‐ 31 ‐ 1:
For   each   of   the   equations   below,
1) State   what   each   term   is   in   your   own   words   …
2) What   the   units   of   each   term   are…
3) What   is   the   general   use   of   that   equation   in   your   own   words?
A.
B.
√
C.
D.
(hint: page 904.)

CH ‐ 31 ‐ 2:
A   capacitor   in   an   LC   oscillator   has   a   maximum   potential   difference   of   15   V   and   a   maximum   energy   of   360  μ J.
At   a   certain   instant   the   energy   in   the   inductor   is   320  μ J.
At   that   instant   what   is   the   potential   difference   across   the   capacitor?
Show   all   work:

CH ‐ 31 ‐ 3:
An   LC   circuit   has   a   capacitance   of   30  μ F   and   an   inductance   of   15   mH.
At   time   t   =   0   the   charge   on   the   capacitor   is   10  μ C   and   the   current   is   20   mA.
The   maximum   charge   on   the   capacitor   is:
Show   all   work:

CH ‐ 31 ‐ 4:
A   Capacitor   of   capacitance   158   μ F   forms   part   of   an   LC   circuit   which   oscillates   at
8.15
kHz,   with   a   current   amplitude   of   4.21
mA.
What   are   a)   the   inductance,   b)   the   total   energy   in   the   circuit,   and   c)   the   maximum   charge   on   the   capacitor?
Show   all   work:

CH ‐ 31 ‐ 5:
In   a   certain   LC   circuit,   the   capacitance   is   4.00
μ F,   the   maximum   voltage   on   the   capacitor   is   1.5
V   and   the   maximum   current   is   50   mA.
How   much   time   is   required   for   the   charge   on   the   capacitor   to   go   from   zero   to   a   maximum   value?
Show   all   work: