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EAMCET Engineering 2004 Solved Paper
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© examsnet.com
Question : 31
Total: 160
n
conducting wires of same dimensions but having restivities
1
,
2
,
3
,
.
.
n
are connected in series. The equivalent resistivity of the combination is
1
n
(
n
+
1
)
2
n
+
1
2
n
+
2
2
n
2
n
n
+
1
Validate
Solution:
Resistivity of the combination
=
(
1
+
2
+
3
+
.
.
.
+
n
)
=
n
(
n
+
1
)
2
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