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Charge and Current: More Practice

Learn how to construct, compare, and contrast the behavior and functions of series and parallel DC circuits. Explore circuit symbols, power sources, loads, and measurements of current (I) and voltage (V). Discover the concept of power consumption and caution against short circuits.

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Charge and Current: More Practice

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  1. Charge and Current: More Practice

  2. Charge and Current: More Practice

  3. Charge and Current: More Practice

  4. Charge and Current: More Practice

  5. Charge and Current: More Practice

  6. A Review of Circuits: Student Learning Goal The student will be able to construct and then compare and contrast the behaviour and functions of series and parallel DC circuits (D2.2, D3.1).

  7. A Review of Circuits SPH4C

  8. Circuits A circuit consists of at least one power source (such as a battery) and one load (such as a light bulb). The two need to be connected in a complete, closed loop.

  9. Circuit Symbols We can represent circuits with schematic diagrams using the following symbols:

  10. Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell

  11. Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells

  12. Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells Connecting wire

  13. Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells Connecting wire Load/resistor

  14. Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells Connecting wire Load/resistor Open switch Closed switch

  15. Circuit Symbols We can represent circuits with schematic diagrams:

  16. Circuit Symbols We can represent circuits with schematic diagrams:

  17. Ammeters To measure the current (I) in an electrical circuit, an ammeter may be placed in the circuit: ammeter load cell

  18. Voltmeters The voltage across any part of a circuit may be measured by placing a voltmeter across it:

  19. Power The power (in Watts) delivered to a circuit or consumed by a load is:

  20. Power: Example A 9-V battery is connected to a load that draws 2 A. What is the power consumed by the load?

  21. Power: Example A 9-V battery is connected to a load that draws 2 A. What is the power consumed by the load?

  22. Power: Example A 9-V battery is connected to a load that draws 2 A. What is the power consumed by the load?

  23. Power: Example A 9-V battery is connected to a load that draws 2 A. What is the power consumed by the load?

  24. A Caution Remember never to make a circuit connecting one terminal of the battery to the other without something to consume the power (such as a light bulb) in between. This would be a short circuit.

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