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Problems on Combination of Resistors
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If five equal pieces of 25Ω are connecte
Question
If five equal pieces of
2
5
Ω
are connected in parallel, then their equivalent resistance will be............
A
2
5
Ω
B
1
Ω
C
5
Ω
D
5
1
Ω
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Solution
Verified by Toppr
Correct option is C)
Resistance of each piece :
R
1
=
R
2
=
R
3
=
R
4
=
R
5
=
2
5
Ω
Equivalent resistance in parallel
R
p
1
=
R
1
1
+
R
2
1
+
R
3
1
+
R
4
1
+
R
5
1
∴
R
p
1
=
2
5
1
+
2
5
1
+
2
5
1
+
2
5
1
+
2
5
1
⟹
R
p
1
=
2
5
5
We get,
R
p
=
5
Ω
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