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Electric Current

Electric Current . How is Electric Current Made? How do Conductors Differ From Insulators? What Affects Current Flow?. Six Vocabulary Terms:. Electric Current AMPERE (AMPS) Electric Circuit Conductor Insulator Voltage Resistance.

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Electric Current

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  1. Electric Current How is Electric Current Made? How do Conductors Differ From Insulators? What Affects Current Flow?

  2. Six Vocabulary Terms: • Electric Current • AMPERE (AMPS) • Electric Circuit • Conductor • Insulator • Voltage • Resistance

  3. ELECTRIC CURRENT is the continuous flow of electric charges through a material.

  4. The unit we use to measure current is called the AMP.

  5. AnELECTRIC CIRCUIT is a complete unbroken path that electric charges flow through. A closed, unbroken circuit allows electric charges to flow. An open, broken circuit does not let charges flow.

  6. A CONDUCTORis a material that allows electric current to readily flow through it. Metals are the most common conductors.

  7. The atoms of conductors have loosely bound electrons that can move freely!

  8. INSULATORSare materials that do not allow electric charges to flow through them.

  9. Plastic and rubber make the best insulators.

  10. Cloth and paper insulation used to be used in most home wiring. This was called “nob and tube wiring” and is now considered dangerous!

  11. Current flow is affected by the energy of the charges and the properties of the objects that the charges flow through.

  12. VOLTAGE or electromotive force can be described as the difference in the amount of possible electric charge between two points, or the electric potential.

  13. RESISTANCEis the measure of how difficult it is for charges to flow through an object.

  14. As you know, four factors determine the resistance of an object: *Diameter *Length *Material * Temperature

  15. As the Length and Temperature of a conductor increase, the resistance of the circuit increases. As the Diameter of a wire increases, the resistance decreases. Different types of (Materials) conductors have different resistances.

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