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JEE Main Physics Class 12 Current Electricity Part 2 Questions
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© examsnet.com
Question : 10
Total: 100
The combination of two identical cells, whether connected in series or parallel combination provides the same current through an external resistance of
2
Ω
. The value of internal resistance of each cell is
[29-Jun-2022-Shift-2]
2
Ω
4
Ω
6
Ω
8
Ω
Validate
Solution:
From diagram
i
p
=
E
2
+
r
2
and
i
s
=
2
E
2
+
2
r
given
i
p
=
i
s
1
2
+
r
2
=
1
1
+
r
1
+
r
=
2
+
r
2
r
=
2
Ω
© examsnet.com
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