This document discusses capacitors and their properties. It defines a capacitor as consisting of two conducting plates separated by an insulator. The capacitance of a capacitor is affected by the plate area, distance between plates, and the material between the plates. Capacitors can store electric energy and maintain a voltage even after the current is removed due to their "memory effect." Capacitors connected in series have a lower overall capacitance than individual capacitors, while capacitors in parallel have a higher overall capacitance than individual capacitors.
this slides are used for the definition of capacitor and inductor and also it types
this slides describe circuit of capacitor and inductors like capacitor in series and parallel and vice versa
Explaining about one of the popular theorems in electrical engineering, Thevenin's theorem. it gives direct idea about the theorem and its different cases of applicability. Some of easy tricks and facts are also included for convenience.
A cylindrical capacitor is a specific type of capacitor characterized by its cylindrical structure. It consists of two coaxial (aligned along the same axis) cylinders or conductors, one inside the other, separated by a dielectric material.
Here are the key components and characteristics of a cylindrical capacitor:
1. **Structure**: It comprises an inner cylinder and an outer cylinder, both arranged along the same axis. The space between these cylinders is filled with a dielectric material that prevents direct electrical contact between the cylinders.
2. **Dielectric Medium**: The dielectric material, which could be air, vacuum, or other non-conductive substances, helps in maintaining a potential difference between the cylinders without allowing the flow of current between them.
3. **Capacitance Factors**: The capacitance of a cylindrical capacitor is influenced by several factors, including the radii of the cylinders, their lengths, and the properties of the dielectric material between them. Formulas exist to calculate the capacitance based on these parameters.
4. **Applications**: Cylindrical capacitors find applications in various fields such as electronics, power systems, and telecommunications due to their relatively high capacitance compared to other capacitor designs. They are utilized where efficient energy storage in a compact form is required.
5. **Energy Storage**: During charging, energy from an external source is expended to charge the capacitor. This energy gets stored within the electrostatic field formed in the dielectric material. Upon discharge, this stored energy is released.
6. **Functions**: Cylindrical capacitors serve multiple functions, including energy storage, signal processing in circuits, filtering, and regulation of electrical energy in power transmission systems.
In summary, cylindrical capacitors are a specific design of capacitors consisting of coaxial cylinders separated by a dielectric medium. Their structure and properties make them valuable in various technological applications where efficient energy storage and manipulation of electrical signals are required.
this slides are used for the definition of capacitor and inductor and also it types
this slides describe circuit of capacitor and inductors like capacitor in series and parallel and vice versa
Explaining about one of the popular theorems in electrical engineering, Thevenin's theorem. it gives direct idea about the theorem and its different cases of applicability. Some of easy tricks and facts are also included for convenience.
A cylindrical capacitor is a specific type of capacitor characterized by its cylindrical structure. It consists of two coaxial (aligned along the same axis) cylinders or conductors, one inside the other, separated by a dielectric material.
Here are the key components and characteristics of a cylindrical capacitor:
1. **Structure**: It comprises an inner cylinder and an outer cylinder, both arranged along the same axis. The space between these cylinders is filled with a dielectric material that prevents direct electrical contact between the cylinders.
2. **Dielectric Medium**: The dielectric material, which could be air, vacuum, or other non-conductive substances, helps in maintaining a potential difference between the cylinders without allowing the flow of current between them.
3. **Capacitance Factors**: The capacitance of a cylindrical capacitor is influenced by several factors, including the radii of the cylinders, their lengths, and the properties of the dielectric material between them. Formulas exist to calculate the capacitance based on these parameters.
4. **Applications**: Cylindrical capacitors find applications in various fields such as electronics, power systems, and telecommunications due to their relatively high capacitance compared to other capacitor designs. They are utilized where efficient energy storage in a compact form is required.
5. **Energy Storage**: During charging, energy from an external source is expended to charge the capacitor. This energy gets stored within the electrostatic field formed in the dielectric material. Upon discharge, this stored energy is released.
6. **Functions**: Cylindrical capacitors serve multiple functions, including energy storage, signal processing in circuits, filtering, and regulation of electrical energy in power transmission systems.
In summary, cylindrical capacitors are a specific design of capacitors consisting of coaxial cylinders separated by a dielectric medium. Their structure and properties make them valuable in various technological applications where efficient energy storage and manipulation of electrical signals are required.
Condenser - basic physics in electrotherapy , seminar by student, condenser, capacitor Definition, Principle of the capacitor, Types of capacitor , Constructions of the capacitor, Working system of capacitor, Charging of a Capacitor, Discharging of capacitor, Resistance, Advantage of capacitor, Disadvantages of capacitor, Application and Uses of capacitor.
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Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
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2. Ch06 Capacitors and Inductors 2
Capacitors and Inductors
• Introduction
• Capacitors
• Factors Affecting Capacitance
• Types Of Capacitors
• Charge in Capacitors
• Memory Effect
• Energy Storing in Capacitor
• Series and Parallel Capacitors
3. Ch06 Capacitors and Inductors 3
Introduction
• Resistor: a passive element which dissipates
energy only
• Two important passive linear circuit
elements:
1) Capacitor
2) Inductor
• Capacitor and inductor can store energy
only and they can neither generate nor
dissipate energy.
5. Ch06 Capacitors and Inductors 5
Capacitors
• A capacitor consists of two conducting plates
separated by an insulator (or dielectric).
(F/m)
10
854
.
8
ε
12
0
0
r
d
A
C
6. Ch06 Capacitors and Inductors 6
Factors Affecting Capacitance
• Three factors affecting the value of
capacitance:
1. Area: the larger the area, the greater the
capacitance.
2. Spacing between the plates: the smaller the
spacing, the greater the capacitance.
3. Material permittivity: the higher the permittivity,
the greater the capacitance.
d
A
C
ε
10. Ch06 Capacitors and Inductors 10
Charge in Capacitors
• The relation between the charge in plates and
the voltage across a capacitor is given below.
Cv
q
C/V
1
F
1
v
q Linear
Nonlinear
11. Ch06 Capacitors and Inductors 11
Voltage Limit on a Capacitor
• Since q=Cv, the plate charge increases as the
voltage increases. The electric field intensity
between two plates increases. If the voltage
across the capacitor is so large that the field
intensity is large enough to break down the
insulation of the dielectric, the capacitor is out
of work. Hence, every practical capacitor has a
maximum limit on its operating voltage.
12. Ch06 Capacitors and Inductors 12
I-V Relation of Capacitor
+
-
v
i
C
dt
dv
C
dt
dq
i
Cv
q
,
13. Ch06 Capacitors and Inductors 13
Physical Meaning
dt
dv
C
i
• when v is a constant voltage, then i=0; a constant voltage
across a capacitor creates no current through the capacitor, the
capacitor in this case is the same as an open circuit.
• If v is abruptly changed, then the current will have an infinite
value that is practically impossible. Hence, a capacitor is
impossible to have an abrupt change in its voltage except an
infinite current is applied.
+
-
v
i
C
14. Ch06 Capacitors and Inductors 14
Voltage On A Capacitor
• A capacitor is an open circuit to dc.
• The voltage on a capacitor cannot change
abruptly.
Abrupt change
15. Ch06 Capacitors and Inductors 15
Memory Effect
• The charge on a capacitor is an integration of
current through the capacitor. Hence, the
memory effect counts.
dt
dv
C
i
t
idt
C
t
v
1
)
(
t
t
o
o
t
v
idt
C
t
v )
(
1
)
(
0
)
(
v
C
t
q
t
v o
o /
)
(
)
(
+
-
v
i
C
16. Ch06 Capacitors and Inductors 16
Energy Storing in Capacitor
dt
dv
Cv
vi
p
t t
v
v
t
v
v
t
Cv
vdv
C
dt
dt
dv
v
C
pdt
w )
(
)
(
2
)
(
)
(
2
1
)
(
2
1
)
( 2
t
Cv
t
w
C
t
q
t
w
2
)
(
)
(
2
)
0
)
(
(
v +
-
v
i
C
18. Ch06 Capacitors and Inductors 18
Series and Parallel Capacitors
• The equivalent capacitance of N parallel-
connected capacitors is the sum of the
individual capacitance.
N
i
i
i
i
i
...
3
2
1
dt
dv
C
dt
dv
C
dt
dv
C
dt
dv
C
i N
...
3
2
1
dt
dv
C
dt
dv
C eq
N
k
K
1
N
eq C
C
C
C
C
....
3
2
1
19. Ch06 Capacitors and Inductors 19
N
eq C
C
C
C
C
1
...
1
1
1
1
3
2
1
20. Ch06 Capacitors and Inductors 20
Series Capacitors
• The equivalent capacitance of series-
connected capacitors is the reciprocal of the
sum of the reciprocals of the individual
capacitances.
N
eq
t
N
t
eq
C
t
q
C
t
q
C
t
q
C
t
q
id
C
C
C
C
id
C
)
(
)
(
)
(
)
(
)
1
...
1
1
1
(
1
2
1
3
2
1
)
(
...
)
(
)
(
)
( 2
1 t
v
t
v
t
v
t
v N
2
1
1
1
1
C
C
Ceq
2
1
2
1
C
C
C
C
Ceq