PPT: Electrostatics

# PPT: Electrostatics | GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE) PDF Download

``` Page 1

Electrostatics
2.0  New Notations
2.1  The  Electrostatic  Field
2.2  Divergence and Curl of Electrostatic Field
2.3  Electric  Potential
2.4  Work  and  Energy  in  Electrostatics
2.5  Conductors
Page 2

Electrostatics
2.0  New Notations
2.1  The  Electrostatic  Field
2.2  Divergence and Curl of Electrostatic Field
2.3  Electric  Potential
2.4  Work  and  Energy  in  Electrostatics
2.5  Conductors
New Notations
R
e
Page 3

Electrostatics
2.0  New Notations
2.1  The  Electrostatic  Field
2.2  Divergence and Curl of Electrostatic Field
2.3  Electric  Potential
2.4  Work  and  Energy  in  Electrostatics
2.5  Conductors
New Notations
R
e
The Electrostatic  Field
2.1.1 Introduction
2.1.2 Coulomb’s Law
2.1.3 The Electric Field
2.1.4 Continuous Charge Distribution
Page 4

Electrostatics
2.0  New Notations
2.1  The  Electrostatic  Field
2.2  Divergence and Curl of Electrostatic Field
2.3  Electric  Potential
2.4  Work  and  Energy  in  Electrostatics
2.5  Conductors
New Notations
R
e
The Electrostatic  Field
2.1.1 Introduction
2.1.2 Coulomb’s Law
2.1.3 The Electric Field
2.1.4 Continuous Charge Distribution
Introduction
The fundamental problem for electromagnetic to solve is to
calculate the interaction of charges in a given configuration.
That  is, what force do they exert on another charge Q ?
The simplest case is that the source  charges are stationary.
Principle of  Superposition:
The interaction between any two charges is completely unaffected
by the presence of other charges.
1 23
F F FF = + ++
v v vv
L
R
v
is the force on Q due to
i
q
i
F
v
Page 5

Electrostatics
2.0  New Notations
2.1  The  Electrostatic  Field
2.2  Divergence and Curl of Electrostatic Field
2.3  Electric  Potential
2.4  Work  and  Energy  in  Electrostatics
2.5  Conductors
New Notations
R
e
The Electrostatic  Field
2.1.1 Introduction
2.1.2 Coulomb’s Law
2.1.3 The Electric Field
2.1.4 Continuous Charge Distribution
Introduction
The fundamental problem for electromagnetic to solve is to
calculate the interaction of charges in a given configuration.
That  is, what force do they exert on another charge Q ?
The simplest case is that the source  charges are stationary.
Principle of  Superposition:
The interaction between any two charges is completely unaffected
by the presence of other charges.
1 23
F F FF = + ++
v v vv
L
R
v
is the force on Q due to
i
q
i
F
v
Coulomb’s  Law
the permittivity of free space
The force on a charge Q due to a single point charge q is given
by Coulomb`s law
2
0
2
12
0
2
1
ˆ ˆ
4
8.85 10
Qq
qQ
F R R r r RR
R
c
Nm
pe
e
-
= = -=
=´
×
vv
vv
```

## GATE Notes & Videos for Electrical Engineering

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## FAQs on PPT: Electrostatics - GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE)

 1. What is electrostatics?
Ans. Electrostatics is the branch of physics that deals with the study of stationary electric charges and the forces they exert on each other.
 2. What are the fundamental principles of electrostatics?
Ans. The fundamental principles of electrostatics are Coulomb's law, which describes the force between two charged objects, and the principle of superposition, which states that the total force on a charged object is the vector sum of the individual forces due to each charge.
 3. How does electrostatics relate to everyday life?
Ans. Electrostatics has several practical applications in everyday life. It explains phenomena such as static electricity, which causes clothes to stick together after being in a dryer, and the attraction or repulsion of objects due to their electric charges. It also plays a crucial role in technologies like inkjet printers, photocopiers, and air purifiers.
 4. What is the difference between conductors and insulators in electrostatics?
Ans. Conductors are materials that allow electric charges to move freely within them, while insulators are materials that do not allow the easy flow of electric charges. In electrostatics, conductors can easily redistribute their charges to achieve electrostatic equilibrium, whereas insulators tend to retain their charges.
 5. How does electrostatics influence our environment?
Ans. Electrostatics can have significant effects on the environment. For example, it plays a role in atmospheric phenomena such as lightning and thunderstorms. Electrostatic discharge can also damage sensitive electronic components, leading to environmental concerns related to electronic waste management. Additionally, electrostatic precipitators are used to remove harmful particulate matter from industrial emissions, contributing to environmental protection.

## GATE Notes & Videos for Electrical Engineering

27 videos|351 docs

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