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  • F = |q1||q2| / r^2

    The law of lecturing force formula

    E = (k)|q| /(qo)

    Formula for the strength of a field at a given distance

    8.99 x 10^9

    Value of k in Coulomb's law units of C, N, and M are used

    8.85 x 10^-12

    Value of (epsilon)o

    E = F/qo

    Equation an electric field

    (22.1) Discharge

    Sudden release of accumulated electric charge

    Neutral

    Any object with no electric charge is said to be ____

    Static electricity

    A stationary charge is called _____ _________

    Law of electric charge

    What law states like charges repel and unlike charges attract?

    Cation

    An atom that has lost (an) electron(s) is a ______

    Anion

    An atom that has gained (an) electron(s)

    Current

    What is the flow of charge from one place to another?

    Conductors

    An object that transmits current efficiently are _________

    Silver, gold, copper, aluminum

    What are the four best conductors

    Electrons

    Responsible for the flow of charge in a solid conductor

    Delocalized

    Describes the electrons of a conductor

    Insulator

    An object that does cannot transfer a charge

    Semiconductors

    Solids that are poor transmitters of current

    Conduction

    Flow of electrons (current) through a conductor or form one object to another

    Same

    Conduction results in a temporary ____ charge on the neutral body as on the charged object

    Negative

    An excess of electrons results in a ______ charge

    Induction

    The production of a local charge by the influence of a charged body at a distance

    Positive

    A deficiency of electrons results in a ______ charge

    Ground

    Wire or conductor in contact with the earth

    Opposite

    Induction results in a long-lasting _______ charge on the neutral object than on the charged material

    Electroscope

    A simple device used to test the charge of an object

    Permitvity

    Extent to which a medium allows an electric field to act between charges

    (Epsilon)

    Greek letter symbolizing Permivity

    Coulomb (C)

    The SI unit of charge

    Law of electric force

    The formula used to determine

    1.602 x 10 ^-19

    Value of a single proton or electron

    (22.2) Electric field

    One charge's influence on another charge at some distance

    N / C

    Unit for an electric field

    Test charge

    Small charge signified by qo

    Lines of force

    Orderly patter regarded as a map of the rod's electric field

    Tangent

    The direction of a field strength is ________ to a line or force at every point

    Perpendicular

    The lines of force are _____________ to every charged surface

    Positively, negatively

    The lines of force originate in a ________ charged body and terminate in a ________ charged body

    Stronger, wesker

    The lines of force are distributed so that they are closer together where the field is _______ and farther apart where the field is ______.

    Uniform field

    A field in which the field strength is the same throughout

    Lines of force

    Orderly patter regarded as a map of the rod's electric field

    Tangent

    The direction of a field strength is ________ to a line or force at every point

    Perpendicular

    The lines of force are _____________ to every charged surface

    Positively, negatively

    The lines of force originate in a ________ charged body and terminate in a ________ charged body

    Stronger, wesker

    The lines of force are distributed so that they are closer together where the field is _______ and farther apart where the field is ______.

    Uniform field

    A field in which the field strength is the same throughout

    (22.3) electric potential energy

    The work done against a field to move the total charge from the ground

    Electric potential

    Total energy per number of coulombs

    Electric potential difference

    Work required of an external force to move a unit positive charge

    Gradient

    Sliding scale of comparison; change in the loss of potential energy

    Electric potential energy

    Symbolized by E

    No

    ____ electric field remains within the body of a conductor

    Surface

    All charge is confined to the _______ of the conductor

    Sharper; point

    In the conductor is not a sphere, the charge is more concentrated whenever the contour is a _____ curve and most concentrated wherever the contour comes to a corner a _____

    Corona discharge

    Gradual discharge to the air producing a dull glow; also called st. Elmo's fire

    N/C

    Unit indicating

    V/m

    Unit indicating

    Equipotential lines

    Can be drawn through points having the same electric potential

    Equipotential

    The conductor must have an ________ surface

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