Md Nur Shahadot presented on electricity and related concepts. Electricity is the flow of charge and is a basic form of energy associated with electric charge. Charge is a fundamental property of elementary particles like electrons and protons that creates forces between them. Coulomb's law states that the electrostatic force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. The electric field is the region around a charge where it can exert attractive or repulsive forces on other charges. Electric field lines provide a visual representation of the direction and strength of the electric field.

1. WELCOME
TO MY
PRESENTATION
Name: Md Nur Shahadot
Id: 201002336

2. ELECTRICITY
What is Electricity?
Electricity is the flow of charge and it is one of the basic forms of
energy. It is associated with electric charge, a property of atomic
particles such as electrons and protons. Electric charges can be
stationary, as in static electricity, or moving, as in an electric current.
Electricity can be generated from many different sources. It can be
sent almost instantly over long distances and can also be stored.

3. Charge
Charge is a fundamental and characteristic property of the
elementary particle which makes up matter. This property creates a
force on one another. These properties are mainly electrons and
protons
Coulomb
A coulomb is defined as the amount of charge that flows through a
given cross-section of a wire in one second if there is a steady current
of one ampere in the wire. Symbolically, it is denoted by C.
Point Charges
The charge bodies whose sizes are much smaller than the distance between them
are called point charges

4. Coulomb's law
“The magnitude of the electrostatic force of interaction
between two point charges is directly proportional to the scalar
multiplication of the magnitudes of charges and inversely
proportional to the square of the distance between them.” The
force is along the straight line joining them. If the two charges
have the same sign, the electrostatic force between them is
repulsive; if they have different sign, the force between them is
attractive

5. Example 1. What must be the distance between point charge 𝒒𝟏 = 𝟐𝟔. 𝟑 𝝁𝑪 and point
charge 𝒒𝟐 = −𝟒𝟕. 𝟏 𝝁𝑪 for the attractive electrical force between them to have a
magnitude of 5.66 N.

6. Electric Field
The region or space around a charge in which it can exert the force of
attraction or repulsion on other charged bodies is called electric field.
Electric Field Intensity
The electrostatic force on unit positive charge at a specific field point is
called the electric field intensity. In order to find out electric field intensity, a
test charge 𝑞0 is placed in the electric field at a field point. The electric field
intensity 𝐸⃗ is expressed as
𝐸⃗ = 𝐹 /𝑞0

7. Electric Field Lines or
Lines of Force
A visual representation of the electric field can be obtained in
terms of electric field lines. Electric field lines can be thought of
a map that provides information about the direction and
strength of the electric field at various places. As electric field
line provides the information about the electric force exerted
on a charge, the lines are commonly called “Lines of Force”