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Class 12
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Physics
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Electrostatic Potential and Capacitance
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Combination of Capacitors
Combination of Capacitors
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Capacitors in Series
Example
Definitions
Formulaes
Capacitors in Parallel
Example
Definitions
Formulaes
Combination of Capacitors - Problem L1
Example
Definitions
Formulaes
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Series Combination of Capacitors
13 mins
Parallel Combination of Capacitors
7 mins
Quick Summary With Stories
Series Combination of Capacitors
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Parallel Combination of Capacitors
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Symmetry circuits
3 mins read
Problem-based on Combination of Capacitors - I
3 mins read
Important Questions
In a parallel plate capacitor with air between the plates, each plate has an area of
6
×
1
0
−
3
m
2
and the distance between the plates is 3mm. Calculate the capacitance of the capacitor. If this capacitor is connected to a 100 V supply, what is the charge on each plate of the capacitor?
Medium
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Three capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel.
(a) What is the total capacitance of the combination?
(b)
Determine the charge on each capacitor if the combination is connected to a 100 V supply.
Medium
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Derive an expression for effective capacitance of three capacitors connected in parallel.
Easy
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A parallel plate air capacitor has a capacitance
C
. When it is half filled with a dielectric of dielectric constant
5
, the percentage increase in the capacitance will be
Medium
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Two capacitors of 2
μ
F
and 4
μ
F
are connected in parallel. A third capacitor of 6
μ
F
is connected in series. The combination is connected across a 12 V battery. The voltage across 2
μ
F
capacitor is:
Medium
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The equivalent capacitance of the combination shown in figure is:
Medium
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Two capacitors when connected in series have a capacitance of
3
μ
F
, and when connected in parallel have a capacitance of
1
6
μ
F
. Their individual capacities are :
Medium
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>
Three capacitors each of capacitance
9
p
F
are connected in series as shown in figure.
(a) What is the total capacitance of the combination?
(b) What is the potential difference across each capacitor, if the combination is connected to a
1
2
0
v
o
l
t
supply?
Medium
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Find equivalent capacitance between points A and B :
Hard
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>
Four metallic plates each with a surface area of one side
A
, are placed at a distance
d
from each other. The two outer plates are connected to one point
A
and the two other inner plates to another point
B
as shown in the figure. Then the capacitance of the system is :
Medium
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>