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Physics > P5 > Flashcards

P5 Flashcards

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1
Q

Alternating current

A

Electric current in a circuit that repeatedly changes direction

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2
Q

Direct current

A

Electric current that flows in one direction

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3
Q

National grid

A

The network of cables and transformers used to transfer electricity

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4
Q

Live wire (brown)

A

Carries a current that alternates between a negative and positive voltage.

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5
Q

Earth wire (green/yellow)

A

A safety feature that is needed to earth electrical appliances with metal casing

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6
Q

Neutral (blue)

A

Complete the circuit. Zero voltage

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7
Q

Define power

A

Rate of energy transferred

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Physics (16 decks)

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