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Current, Load & Resistance

This journal explores the concepts of electric current, load, and resistance. It explains how positive charges from a battery can create electricity, highlighting that electric current is the flow of charges, measured in amperes (A). The text compares electric current to water flow, emphasizing key elements such as the direction of current and the relationship between load and resistance. Devices used to measure current like ammeters and voltmeters are also discussed. Students are encouraged to visualize concepts with pictures to enhance understanding.

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Current, Load & Resistance

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  1. Current, Load & Resistance SNC1P

  2. Journal Can the positive charges flow out of a battery to createelectricity? Why or why not? Use Pictures and Words. + Chemical Changes -

  3. Source

  4. Current, Load, and Resistance Date: • Electric Current: the flow of charges • Symbol: I Water Current: Flow of water

  5. Current Direction?

  6. Current ???

  7. Electrons • ________________ flow in ONE direction in a circuit.

  8. 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?

  9. The AMOUNT of current flowing into one end of the wire is the same flowing out. • Amperes: measure AMOUNT of current • Symbol: A

  10. Electric Current: Flow of charges • Symbol: I • Measured in: Amperes What is the device that measures Current?

  11. Remember … • : the device that measures the potential difference Voltmeter

  12. Current ( ) is measured in Amperes ( ). Ammeter: the device that measure current in a circuit Multimeter

  13. Source • Current

  14. What are some examples of a LOAD? LOAD

  15. Load: device that converts electrical energy into another form of energy • Ex: Light bulb, ________, _________

  16. The Load and Resistance How could you slow the flow of the current in a stream? Dam puts resistance on the current

  17. A Load resists the flow of current.

  18. The Load and Resistance Filament

  19. Resistance: the amount that current that is slowed by the load

  20. Source • Current Load

  21. VIDEO

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