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THE ELECTRICITY :star:, difference between NO and NC push swtiches, image,…
THE ELECTRICITY :star:
Electrical energy
Electricity
Electric energy
Conductors and insulators
Conductors: Let electric current flow thorugh them
copper
tin
aluminium
silver
iron
Insulators: Do not let electric current flow throught them
paper
textiles
plastic
wood
Static electricity
is a phenomenon caused by the accumulation of charge in a material.
COMPONENTS IN A CIRCUIT
load devices
conductors
power sources
control devices
components of a circuit
power sources
cell
battery
load devices
lamp
motor
buzzer
resistor
conductors
wire
control devices
one way switch
push switch
two way switch
Electrical schematics
EXAMPLES OF CIRCUITS WITH DIFFERENT COMPONENTS
difference between NO and NC push switches
circuits with two-way switch
circuits with multiple load devices
circuits with multiple control devices
circuit with multiple control devices
simple circuit with one-way switch and lamp
circuit with one-way switch and buzzer
standarised symbol
: Every component in a circuit
Open circuits and closed circuits
circuits are controled by switches that open and close the circuit when they are pressed
closed: when the energy of the power source reaches the load devices so the electric current flows
open: the energy of the power source cannot reach the load devices so the electric current cant flow
Short circuits
MAIN ELECTRIC VARIABLES OHM´S LAW
current
intensity of the current or the amount of electrons flowing through a conductor over a certain time.
resistance
opposition to the flow of the electric current.
voltage
differences in the charge between two points , wich makes the electrons move.
OHM´S LAW
the current in a circuit is directly proportional to the electric potential impresed across its ends and inversely proportional
to the total resistance offered by the external circuit
TYPES OF CIRCUITS
series circuits
parallel circuits
series-parallel combination circuits
SOLVING SERIES CIRCUITS
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PARALLEL CIRCUITS
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CONVERTING ELETRICAL ENERGY
motion
sound
heat
light
load device and energy
lamp
light energy
motor
kinetic energy
resistor
heat energy
buzzer
sound energy
difference between NO and NC push swtiches
difference between NO and NC push switches
circuit with multiple load devices
