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JEE Main Physics Class 12 Electrostatic Potential and Capacitance Part 1 Questions
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© examsnet.com
Question : 36
Total: 100
Seven capacitors, each of capacitance
2
µ
F
, are to be connected in a configuration to obtain an effective capacitance of
(
6
13
)
µ
F
.
Which of the combinations, shown in figures below, will achieve the desired value?
[11 Jan. 2019 II]
Validate
Solution:
As required equivalent capacitance should be
C
e
q
=
6
13
µ
F
Therefore three capacitors must be in parallel and 4 must be in series with it.
1
C
e
q
=
[
1
3
C
]
+
[
1
C
+
1
C
+
1
C
+
1
C
]
C
e
q
=
3
C
13
=
6
13
µ
F
[
as
C
=
2
µ
F
]
So, desired combination will be as below:
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