Electricity

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18 Terms

1

current

rate of flow of charge

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2

current is measured in

Amps

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3

voltage

energy transferred per unit charge

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4

resistance

slows down flow of circuit

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5

more resistance means

less current

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6

charge measured in

coulombs

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7

live wire is

brown

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8

neutral is

blue

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9

earth wire is

green/yellow

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10

fuse

overheats is current is too high to protect circuit

cuts off live suppy

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11

high temperature means

more resistance

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12

thermistor

temperature dependent resistor

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13

more heat in thermistor =

less resistance

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14

LDR

changes resistance depending on light

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15

LDR use

burglar dectors

bright= less resistancr

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16

LED

indicate prescence of current in a circuit

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17

series circuit

current is the same

voltage is shared

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18

parallel circuit

current shared

voltage is the same

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