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Question
Physics
Three capacitors each of capacitance 9pF are connected in series. What is the potential difference across each capacitor, if the combination is connected to a 120V supply?
Q. Three capacitors each of capacitance
9
pF
are connected in series. What is the potential difference across each capacitor, if the combination is connected to a
120
V
supply?
1009
157
NTA Abhyas
NTA Abhyas 2020
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A
40
V
B
60
V
C
80
V
D
50
V
Solution:
C
s
1
=
C
1
1
+
C
2
1
+
C
3
1
=
9
1
+
9
1
+
9
1
C
s
1
=
9
3
⇒
C
s
=
3
pF
Charge,
q
=
C
s
V
=
3
×
120
=
360
pC
Potential difference across
C
1
,
(
V
1
)
=
C
1
q
=
9
360
=
40
V
=
V
2
=
V
3