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Byju's Answer
Standard XI
Physics
Symmetry in Circuits
Equivalent re...
Question
Equivalent resistance between A and B is
(up to two decimal places)
Open in App
Solution
∈
=
(
i
1
+
i
−
2
)
Req -(1)
∈
=
(
i
1
+
i
5
+
i
−
2
)
−
(
2
)
i
1
+
i
3
=
i
2
−
(
3
)
&
i
3
+
i
4
=
i
5
−
(
4
)
i
1
+
i
5
=
i
2
+
i
n
−
(
5
)
,
i
1
=
i
3
+
i
5
−
(
6
)
,
i
5
+
i
n
=
i
2
+
i
3
−
(
7
)
Solving equls we get
2
i
1
=
i
2
+
4
i
3
−
(
a
)
and
6
i
1
=
5
i
2
,
i
5
=
4
5
i
1
&
i
3
=
i
1
5
∈
=
i
1
+
4
5
i
1
+
6
5
i
1
⇒
∈
=
15
5
i
1
−
(
x
)
By
(
1
)
=
∈
=
(
i
1
+
6
5
i
1
)
Req
⇒
∈
=
11
5
i
1
Req -(y)
By
(
x
)
=
(
y
)
15
5
i
1
=
11
5
i
1
Req = Req
=
15
11
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