PPT: Electricity | Science Class 10 PDF Download

 Page 1


E l e c t r i c i t y
C h a p t e r - 1 2
Page 2


E l e c t r i c i t y
C h a p t e r - 1 2
E l e c t r i c i t y
The term " e l e ct ric ity" originated from the
Greek words "Electrica" and "Elektron."
Thales, a Greek philosopher, was one of
the first to observe the attractive
properties of certain materials when
rubbed together.
Page 3


E l e c t r i c i t y
C h a p t e r - 1 2
E l e c t r i c i t y
The term " e l e ct ric ity" originated from the
Greek words "Electrica" and "Elektron."
Thales, a Greek philosopher, was one of
the first to observe the attractive
properties of certain materials when
rubbed together.
Electricity is a widely used form of energy.
Conductors allow electric charge to flow freely, while
insulators do not.
Current electricity deals with the movement of
electric charges.
An electric circuit is a continuous, closed path for
electric current to flow.
Electric current is defined as the rate of flow of
electric charge through a conductor, measured in
amperes (A).
The direction of electric current is considered
opposite to the flow of negatively charged electrons.
Electric Current and Circuit
Page 4


E l e c t r i c i t y
C h a p t e r - 1 2
E l e c t r i c i t y
The term " e l e ct ric ity" originated from the
Greek words "Electrica" and "Elektron."
Thales, a Greek philosopher, was one of
the first to observe the attractive
properties of certain materials when
rubbed together.
Electricity is a widely used form of energy.
Conductors allow electric charge to flow freely, while
insulators do not.
Current electricity deals with the movement of
electric charges.
An electric circuit is a continuous, closed path for
electric current to flow.
Electric current is defined as the rate of flow of
electric charge through a conductor, measured in
amperes (A).
The direction of electric current is considered
opposite to the flow of negatively charged electrons.
Electric Current and Circuit
A circuit diagram is a visual representation
of electrical circuits using symbols.
It shows the relative positions of
components and their connections.
Circuit Diagram
Page 5


E l e c t r i c i t y
C h a p t e r - 1 2
E l e c t r i c i t y
The term " e l e ct ric ity" originated from the
Greek words "Electrica" and "Elektron."
Thales, a Greek philosopher, was one of
the first to observe the attractive
properties of certain materials when
rubbed together.
Electricity is a widely used form of energy.
Conductors allow electric charge to flow freely, while
insulators do not.
Current electricity deals with the movement of
electric charges.
An electric circuit is a continuous, closed path for
electric current to flow.
Electric current is defined as the rate of flow of
electric charge through a conductor, measured in
amperes (A).
The direction of electric current is considered
opposite to the flow of negatively charged electrons.
Electric Current and Circuit
A circuit diagram is a visual representation
of electrical circuits using symbols.
It shows the relative positions of
components and their connections.
Circuit Diagram
George Simon Ohm established the
relationship between electric current (I),
potential difference (V), and resistance (R) in
a conductor.
Ohm's law states that, at a constant
temperature, the current passing through a
conductor is directly proportional to the
potential difference across its ends: V ? I.
This relationship is represented as V = IR,
where V is the potential difference (in volts), I
is the current (in amperes), and R is the
resistance (in ohms).
Ohm's Law