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CIRCUITS AND CURRENT ELECTRICITY

CIRCUITS AND CURRENT ELECTRICITY. What do resistors do?. Resistance in wires. Factors affecting resistance Length Width Temperature material. Mechanical and electrical circuits. Energy source & conversion Ladder Battery Current Students charges. Mechanical and electrical circuits.

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CIRCUITS AND CURRENT ELECTRICITY

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  1. CIRCUITS AND CURRENT ELECTRICITY

  2. What do resistors do?

  3. Resistance in wires • Factors affecting resistance • Length • Width • Temperature • material

  4. Mechanical and electrical circuits • Energy source & conversion • Ladder • Battery • Current • Students • charges

  5. Mechanical and electrical circuits • Resistance and energy “loss” • Slide • resistor • Ohmic devices • Power dissipation

  6. Mechanical and electrical circuits • Series • Parallel • Combination circuits

  7. Circuit applications • Voltage divider • two resistors • potentiometer • Current divider (shunt)

  8. Meters in circuits • Ammeters • Voltmeters

  9. Batteries • Internal resistance • Ideal • Real

  10. Conventional current Vs. charge flow • Electron Vs. proton flow

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