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Electricityand direct current circuits, is the flow of electric charge…
Electricityand direct current circuits
ELECTRICITY:Electrical energy
(made up of atoms)
Types of atoms:elementary particles of the atom
Neutrons
: has no electrical charge
Electrons
:negative electrical charge
Protons
:positive electrical charge
They exert force of attraction (electicity)
Electricity
(forms of energy that produce effects)
Conductors and insulators
Insulators
(material that has an electrical charge but cannot move)
Wood
Cardboard
Plastic
Conductors
(material with little resistance to the movement of electric charge)
Silver
Copper
Gold
Aluminium
Electric circuits . Components
Control devices
push switches
two-way switches
one-way switches
regulate the circuit
Load devices
motors
lamps
recive the electrical energy
Power sources
Battery
Cell
supply the necessary electrical energy
conductors
Wire
transport the electrical energy
it´s a series of interconnected components that an electric current flows through to produce an effect
Types of circuits
: series,parallel and series -parallel combation
Parallel circuits
:connecting input devices that match each other
Series-parallel combination circuits
:It is a mixed series and parallel circuit.
Series
circuits:connection configuration by the terminals or terminals ,successively
Main electric variables
.
Voltage:
Volt
it is a physical quantity.
Resistance:
ohm
Current:
Ampere
Ohm´s law
:
Converting electrical energy
Heat
the transfer of kinetic energy from one medium or object to another, or from an energy source to a medium or object.
Motion
we can also convert electricity to motion using a motor
Light
we can convert electricity to light through load devices such as incandescent lamps
Sound
we can use electrical energy to transmit sounds
Lamp
ligth energy
Motor
kinetic energy
Resistor
heat energy
Buzzer
sound energy
Open circuits and closed circuts. Short circuits
Open circuit :
Electrical circuit through which electric current circulates
Closed circuit
Any closed path passing through circuit elements
Energy and the environment
Environmetal impact of energy prduction and transmission
Responsible use of elctrical energy
is the flow of electric charge through a material.
electric current flow
is a basic law to understand the main fundamentals.
is the process of changing energy