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Electricity

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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

    ``T

    ► Thermoelectricity (22 P)

    Pages

    *

    ` Electricity

    Mains electricity by country

    `A

    ` Abmho

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    `B

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    `C

    ` CAN/ULC S801 Capacitance

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    `D

    ` Daraf

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    `E

    ` Electric charge

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    `F

    ` Field coil

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    `G

    ` Geothrix fermentans

    `H

    ` High voltage

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    `I

    ` Characteristic impedance

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    `J

    ` Joule heating

    `K

    ` Kite experiment

    `L

    ` Lichtenberg figure

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    Low voltage

    M

    ` Meter operator

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    `N

    ` Negative resistance

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    NFPA 70E

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    `O

    ` Overheating (electricity)

    `P

    ` Periodic steady-state analysis

    Plug load

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    Power distribution center

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    Programme for Economic Advancement and Community Empowerment

    `R

    ` Rating (electrical)

    Relative permittivity

    Ripple (electrical)

    `S

    ` Short circuit

    Signal reflection

    Space charge

    Speed of electricity

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    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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    Categories:

    Electric and magnetic fields in matter

    Magnetism

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