Chapter 43- Uses And Effects Of Electicity Flashcards Preview

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Flashcards in Chapter 43- Uses And Effects Of Electicity Deck (11)
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1

AC

Current changes direction 50 times per second

2

Sign for socket

-•~•-

3

Sign for battery

Σ(゚д゚lll)
/\____________________
I CANT DRAW IT!!!!!! )

4

Kilowatt-hour

Unit of electrical energy
One kWh costs oh average 14c

5

Convert watts to kilowatts

Divide by 1000

6

Fuse

To limit the size of current flowing in a circuit
Melts

7

Circuit breaker

-has an electro-magnet in it
-if the current grows too much, the magnets is turned on and is strong enough to pull a switch, closing the circuit
-better than fuse, because it doesn't have to be replaced, just switch on again! ★

8

Green and yellow

Earth
Middle

9

Blue

Neutral
Left

10

Brown

Live
Right

11

DC

Direct current
Current always goes in the same direction