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Electricity

Page history last edited by Dmitry Sokolov 1 year, 7 months ago

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https://en.wikipedia.org/wiki/Electricity

Electricity is the set of physical phenomena associated with the presence of electric charge. Although initially considered a phenomenon separate to magnetism, since the development of Maxwell's Equations both are recognized as part of a single phenomenon: electromagnetism. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. In addition, electricity is at the heart of many modern technologies.

The presence of an electric charge, which can be either positive or negative, produces an electric field. On the other hand, the movement of electric charges, which is known as electric current, produces a magnetic field.

When a charge is placed in a location with non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's Law. Thus, if that charge were to move, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of positive charge from an arbitrarily chosen reference point to that point without any acceleration and is typically measured in Volts.

 

Electrical Effects

Electricity Concepts

Electricity Relationships


Y10 Learning Outcomes

  • Electricity is a convenient means of transferring energy over long distances.
  • Electric Charges are used for the electricity transfer.
  • Electricity travels in loops, or circuits
    • Must have a complete path before the electrons can move
  • Accumulated charges are called Static Electricity

Year 1 University


Links  

https://en.wikipedia.org/wiki/Category:Electricity

Subcategories

`A
    ► Electrical analogies‎ (13 P)
`D
    ► Dielectrics‎ (6 C, 47 P)
`E
    ► Electric arcs‎ (6 C, 19 P)
    ► Electric charge‎ (1 C, 7 P)
    ► Electric current‎ (1 C, 17 P)
    ► Electric power‎ (20 C, 157 P)
    ► Electrical breakdown‎ (3 C, 33 P)
    ► Electrical resistance and conductance‎ (6 C, 15 P)
    ► Deaths by electrocution‎ (3 C, 3 P)
    ► Electrodes‎ (1 C, 49 P)
    ► Electron‎ (4 C, 30 P)

    ► Electrotherapy‎ (1 C, 30 P)

`F
    ► Fictional characters with electric or magnetic abilities‎ (2 C, 56 P)
    ► Firelighting using electricity‎ (5 P)
    ► Electric fish‎ (2 C, 13 P)
``M
    ► Electrical meters‎ (3 C, 24 P)

``P
    ► People associated with electricity‎ (4 C, 41 P)
``S
    ► Electrical safety‎ (2 C, 81 P)

``T
    ► Thermoelectricity‎ (22 P)

Pages

*
`    Electricity
    Mains electricity by country
`A
`    Abmho
    Adaptive voltage scaling
    Advanced superionic conductor
    Aerial bundled cable
    Alkali-metal thermal to electric converter
    Ampere balance
`B
`    Batteryless radio
    Bonding jumper
    Break junction
    Bridgman effect
`C
`    CAN/ULC S801
    Capacitance
    Capacitance multiplier
    Characteristic admittance
    Chiral magnetic effect
    Common rail (electricity)
    Conductivity factor
    Correlated double sampling
    Coulomb's constant
    Cross-linked polyethylene
    Cylinder fuse
`D
`    Daraf
    Data collector
    Debye length
    Dielectric barrier discharge
    Dielectric breakdown model
    Dielectric strength
    Distribution Transformer Monitor
    Diversity factor
`E
`    Electric charge
    Electric potential energy
    Electric shock torture
    Electric transient
    Electrical burn
    Electrical conductor
    Electrical energy
    Electrical junction
    Electrical network
    Electrical polarity
    Electrical resistance and conductance
    Electricity on Shabbat
    Electro Thermal Dynamic Stripping Process
    Electrochemical cell
    Electrocution
    Electrode
    Electrolithoautotroph
    Electrometer
    Electronic circuit
    Electrostatic induction
    Electrostatic units
    Electrovibration
    Energoland
    Energy mix
    Erotic electrostimulation
    Etymology of electricity
    Experiments and Observations on Electricity
    Extension cord
`F
`    Field coil
    Fluid theory of electricity
    Franklin bells
`G
`    Geothrix fermentans
`H
`    High voltage
    History of electromagnetic theory
    Hygroelectricity
`I
`    Characteristic impedance
    Interactive Energy AG
    Isolated ground
`J
`    Joule heating
`K
`    Kite experiment
`L
`    Lichtenberg figure
    Lighting power density
    Line of force
    Linear element
    List of electricity sectors
    Low voltage

M
`    Meter operator
    Method of images
    Motor control center
    Mutual capacitance
`N
`    Negative resistance
    NFPA 70B
    NFPA 70E
    Node (circuits)
`O
`    Overheating (electricity)
`P
`    Periodic steady-state analysis
    Plug load
    Polarity (mutual inductance)
    Power distribution center
    Power-off testing
    Programme for Economic Advancement and Community Empowerment
`R
`    Rating (electrical)
    Relative permittivity
    Ripple (electrical)
`S
`    Short circuit
    Signal reflection
    Space charge
    Speed of electricity
    Standby power
    Static electricity
    Statmho
`T
`    Thermionic emission
    Thermo-dielectric effect
    Thermophotovoltaic
    Timeline of electromagnetic theory
    Triboelectric effect
`U
`    Ufer ground
    Unified power flow controller
`V
`    Volt-ampere reactive
    Voltage drop

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Electric and magnetic fields in matter

Magnetism

 

 

 

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