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AMU Engineering 2017 solved paper Solved Paper
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© examsnet.com
Question : 18
Total: 150
A circuit is shown in the figure. The e.m.f. of the battery is
4
V
6
V
12
V
8
V
Validate
Solution:
Equivalent resistance and current in the circuit has been calculated in the figures given below In series,
R
e
q
=
1
+
1
=
2
Ω
Inparallel,
R
e
q
=
2
×
2
2
+
2
=
1
Ω
In series
R
e
q
=
2
+
1
=
3
Ω
In series,
R
eq
=
6
×
3
6
+
3
=
2
Ω
In series,
R
e
q
=
2
+
2
=
4
Ω
∴
e
m
f
,
E
=
(
Total current
)
×
(
Net equivalentresistance)
=
3
×
4
=
12
V
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