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Card 6

Front

what is the equation fr frequency?

Back

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Card 7

Front

why is the outer cover of a plug made of platic or rubber?

Back

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Card 8

Front

why are the pins in a plug made from brass?

Back

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Card 9

Front

what are the plugs casing if an earth wire is needed?

Back

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Card 10

Front

what should the earth wire be connected to?

Back

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Card 11

Front

what should the brown wire be connected to?

Back

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Card 12

Front

what should the blue wire be connected to?

Back

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Card 13

Front

what does the cable grip do?

Back

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Card 14

Front

how can the wire thickness affect the appliance it is used for?

Back

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Card 15

Front

why dont plastic cases on a plug need a earth wire?

Back

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