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University of North Carolina, Charlotte *
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Course
1101
Subject
Electrical Engineering
Date
Nov 24, 2024
Type
Pages
1
Uploaded by SargentFlamingo279
10:10
=
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recitation6
Done
[-B
20of
4
R
Rec
6
Worksheet
—
DC
Circuit
and
Resistors
in
Series/Parallel
7?97
|
Ex
3:
All
the
batteries
and
the
Iught
hulb@
(A
—
E)
in
figure
below
are
ld“rlfl(
alin
circuits
1
-3
BTl
F
WT?
‘
(
}wl.Hn\
Ki
5
¢
Circuit
1
Circuit
2
C"CU"
3
t
/
G
\
a)
The
current
passing
through
the
bulb
A
is
1()
mA.
Whatis
the
current
passing
through
B,C,Dand
E?
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3\“]
T
('.:llm_A
il
=
'[\A
[r_“)HI
f\ub
oK
RW
FIN
9V
b)
All
the
batteries
started
with
same
amount
of
usable
energy
and
connected
at
the
same
time.
The
battery
in
which
circuit
will
last
the
longest?
(Circle
one)
Circuit
1
/
Circuit
3
C.L
*M‘
dlhall
Wr
Ny
:
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PH\)lK
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!
umgx
i
i
fsmnll
“‘"&V
b
c)
A
switch
S
is
connected
as
shown
in
Circuit
4?2
What
h
ppens
to
the
OPm
brightness
of
bulb
X
when
the
switch
S
(originally
closed)
is
opened?
X
becomes
brighter
/
No
change
happens
to
X.
“Ul“d
'
Circuit
4
@‘%
%
Kot
-
R+
%
(Y
=19
r
Ex
4:
A
battery
with
an
emf
of
10.7
V
has
a
terminal
voltage
of
10.1
V
when
the
current
is
3.46
A
¥
K
UL‘
IR
a)
Calculate
the
battery's
internal
resistance
.
I
b)
Find
the
load
resistance
R.
0)
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Sl
BN
b
e
I
e
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540
A
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