Current, Load & Resistance
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Transcript of Current, Load & Resistance
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Current, Load & Resistance
SNC1P
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JournalCan the positive
charges flow out of a battery to create electricity?
Why or why not?
Use Pictures and Words.
-
+Chemic
al Change
s
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Source
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Electric Current: the flow of chargesSymbol: I
Water Current: Flow of water
Current, Load, and Resistance Date:
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Current
Direction?
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Current
???
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________________ flow in ONE direction in a circuit.
Electrons
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Water Current: Flow of water
Electric Current: Flow of charges
Does the amount of current flowing from the top of stream to the bottom of stream change?What about a in a wire?
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The AMOUNT of current flowing into one end of the wire is the same flowing out.
Amperes: measure AMOUNT of currentSymbol: A
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Electric Current:
Symbol:
What is the device that measures Current?
Flow of charges
I Measured in:
Amperes
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Remember …
: the device that measures the potential difference
Voltmeter
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Current ( ) is measured in Amperes ( ).
Ammeter: the device that measure current in a circuit
Multimeter
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Source Current
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What are some examples of a LOAD?
LOAD
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Load: device that converts electrical energy into another form of energy
Ex: Light bulb, ________, _________
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The Load and Resistance
How could you slow the flow of the current in a stream?
Dam puts resistance on the current
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A Load resists the flow of current.
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The Load and Resistance
Filament
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Resistance: the amount that current that is slowed by the load
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Source Current Load
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