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Electricity - Coggle Diagram
Electricity
Electricity:
Form of energy that lets negativily charged particles move to one atom to another.
Electric current
: Is the flow of electrons from one atom to another inside a conductive material.
Electrical energy:
Most common energy because it´s easy to obtain, it can also be transported and can be obtein into many forms of energy.
Conductors:
Materials that let electric current flow through them.
Insulators:
: Materials that do not let electric current flow through them.
All materials are made of little particles called atoms. They hace three parts: Protons (positive charge), electrons (negative energy) and neutrons (neutral charge)
Electric circuits:
A series of interconnected components that an electric current flows through to produce an effect.
Load devices:
They recive electrical energy from power sources and convert it into other types of useful energy.
Lamp:
Motor:
Buzzer
:
Resistor:
Control devices:
They regulate the circuit.
One-way switch:
Push switch:
Conductors:
Transport the electrical energy from the power sources to the load devices.
Wire:
Power sources:
Components that supply the necessary electrical energy to the rest of the circuit in order to move the electrons.
Battery:
Cell:
Electrical schements:
drawings represent circuits and it's composed by standarsied symbols.
Representations of circuits
Simple circuit with one-way switch and lamp:
Simple circuit with one-way switch and buzzer:
Examples of circuits with different components
No and NC push switches:
stable positions.
Two way switch:
they have 2 positions
Multiple load devices:
Multiple control devices:
Circuits are controlled by switches that open and
closethe circuit when they are pressed.
A circuit is open when the energy of the power source
cannot reach the load devices, so the electric current cannot flow.
A circuit is closed when the energy of the power source reaches the load devices, so the electric current flows.
The 3 main variables that we can see in a representation of an electric circuit:
Voltage (or potential difference):
Volt/v
Resistance:
ohm
Current:
ampere/amp
Ohm's:
This equation is known as Ohm's law. The current in a circuit is directly proportional to theelectric potential difference.
Types of circuits:
Parallel circuits:
Series-parallel combination circuits:
Series circuits:
Solving circuits:
Association of resistors.
Series circuit
Resistances:
The equivalent resistance is equal to the sum of all resistances in the circut. Rt= R1 + R2 + ... + Rn
Currents:
The current flowing through all of the resistors in the circuit is the same and is equal to the current of the equivalent circuit. It = I1 = I2 = ...=In
Voltages:
The total voltage delivered by the power source is the sum of the potential drops across each of the resistors. Vt = V1 + V2 + ... + Vn
Parallel circuit
Currents:
The current of the equivalent circuit is equal to the sum of the currents flowing across each of the resistors. It = I1 + I2 + ... + In
Voltages:
The total voltage delivered by the power source is the same as the potential drops across across each of the resistors. Vt = V1 = V2 = ... = Vn
Resistances:
The inverse of the equivalent resistance is equal to the sum of the inverses of all resistances in the circuit. 1/Rt = 1/R1 + 1/R2 +... + 1/Rn
Converting electrical energy:
Can be converted in 4 energys.
Heat
Motion
Light
Sound
Energy and the enviroment:
Enviromental impact of energy production and transmission.
Responsable use of electrical energy.
Consume less energy
Use domestics when they are full
Low energy bulbs
Switch off
