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Potential
Potential
Capacitors in Circuits
Capacitors in Circuits
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View Full Document Types of Circuits
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Series
One path
All the electrical
components are in a single line with only one path
through them.
Electricity has to flow through them in order.
Parallel
More than one path
These are not necessarily visually parallel. The key is that there is more
than one way for electricity to get from point
A
to point
B .
Electricity splits up between the available paths.
Combination of Series and Parallel
Part of the circuit is in series and part is in parallel.
Equivalent Capacitance
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When two or more capacitors are wired together the capacitance
adds to form a sum of capacitance, or equivalent capacitance.
The equivalent capacitance is the value of the capacitor that
would be needed to do the same job as several capacitors added
together.
Adding Capacitors in Series
Adding Capacitors in Parallel
1
C
S
= Σ
1
Χ
ι
1
C
S
=
1
1
+
1
2
+
1
3
+
...
C
p
= ΣΧ
C
p
= Χ
1
+
2
+
3
+
...
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View Full Document Example 1
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Solve for the equivalent capacitance
1
C
S
= Σ
1
Χ
ι
1
C
S
=
1
2
+
1
4
C
1
= 2 F
C
2
= 4 F
There is only one path from left to right:
Series
1
C
S
=
3
4
Be careful: we just solved for
1/
C
. We are looking for
C
.
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This note was uploaded on 07/21/2009 for the course PHYSICS 7B taught by Professor Packard during the Spring '08 term at University of California, Berkeley.
 Spring '08
 Packard
 Physics

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