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CIRCUITS

CIRCUITS. Chapter 13.3. Electric Circuit. An electrical device connected so that it provides one or more complete paths for the movement of charges. Schematic Diagram. A graphic representation of an electric circuit or apparatus , with standard symbols for the electrical devices.

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CIRCUITS

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  1. CIRCUITS Chapter 13.3

  2. Electric Circuit • An electrical device connected so that it provides one or more complete paths for the movement of charges.

  3. Schematic Diagram • A graphic representation of an electric circuit or apparatus, with standard symbols for the electrical devices.

  4. Wire or Conductor • Wires that connect elements are conductors.

  5. Resistor • Wires with multiple bends indicating resistance to a straight path. http://images1.wikia.nocookie.net/en.futurama/images/0/0d/200px-Resistor_symbol_America.svg.png

  6. Bulb or Lamp • The winding of the filament indirectly indicates that the light bulb is a resistor. http://cnx.org/content/m14370/latest/Schematic.png

  7. Battery or Direct Current Source • The difference in line height indicates a voltage between positive and negative terminals of the battery. The taller line represents the positive terminal of the battery. http://cnx.org/content/m14370/latest/Schematic.png

  8. Switch • The small circles indicate the two places where the switch makes contact with the wires. Most switches work by breaking only one of the contacts. Open switch Closed switch http://www.highschoolresource.energyaustralia.com.au/studentsElectricCircuits.html

  9. Series Circuits • A circuit that provides a single path for current to flow. • As you add resistors, the total resistance (RT) of the circuit increases causing the total current to decrease. • The current through each resistor is the same no matter what the value of the resistor. • The voltage of the battery is shared between each resistor.

  10. Series Circuit • If three lamps are connected in series and one lamp burns out, all the lamps are not going to light. The circuit will be broken. • As identical lamps are added in series, the light will get dimmer because less current is flowing through the lamps

  11. Parallel Circuit • A circuit that provides two or more paths for current to flow. • As you add resistors, the total resistance (RT) in the circuit decreases causing the total current to increase.

  12. Parallel Circuit • The current through each resistor depends on the value of that particular resistor. The higher the resistance, the lesser the current that passes through the resistor.

  13. Parallel Circuit • The voltage of the battery is the same across each resistor. Each resistor gets the same voltage value of the battery.

  14. Parallel Circuits • If three lamps are connected in parallel and one lamp burns out, all the other lamps are still going to light. There is still a circuit intact.

  15. Parallel Circuit • As identical lamps are added in parallel, the brightness of the lamps will not change. More current is added.

  16. Series Circuit Parallel Circuit

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