electricity Flashcards

(16 cards)

1
Q

required practicle resistance in a wire variable

A

independant-length of wire
dependant-resistance
control-type metal,diameter of wire

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2
Q

required practicle series paralell circuit resistors variables

A

independant- series or pannel
dependant- resistance
control-number of resistors type of power source

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3
Q

required practicle relationship in circuit variables

A

independant-difference/volts
dependant-current
control-number of components e.g filament bulb

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4
Q

charge equation

A

q=It

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5
Q

potential difference equation

A

V=IR

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6
Q

CHARGE

A

electric current is the flow of electric charge it only flows when cirucuitis complete charge is the current flowing past a point in a given timee charge is measured in coulombs

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7
Q

calculating charge

A
  1. charge flow=current X time Q+It
  2. potential difference= current X resistance V=I X R
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8
Q

resistance equation

A

Voltage=current X resistance V=IR

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9
Q

current

A

the flow of electrical charge

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10
Q

potential differebce ( voltage)

A

the push of electrical charge

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11
Q

resistance

A

slows down flow of electricity

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12
Q

what happebns when adding reisrance

A

it lowers the resistance

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13
Q

live wire

A

RED provides the potential diference from the mains

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14
Q

neutral wire

A

GREEN&BLUE completes the circuit

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15
Q

earth wire

A

GREEN protection, stops the appliance from becoming live carries current if their is a fault touching the live wire can cause current to flow through your body resulting in an electric shock

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16
Q

energy transfered equation

A

=power X time