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ELECTRICITY PPT

ELECTRICITY PPT. COMPILED & EDITED BY MUKESH KUMAR CHHIPA TGT WE K V 2 AJMER (RAJ.) 9269048633(M). Electricity Theory. VIR PIV and Capacitors!!!. Energy. PE g. When an object is at some height in a gravitational field it is said to have gravitational potential energy, PE g.

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ELECTRICITY PPT

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  1. ELECTRICITY PPT COMPILED & EDITED BY MUKESH KUMAR CHHIPA TGT WE K V 2 AJMER (RAJ.) 9269048633(M)

  2. Electricity Theory VIR PIV and Capacitors!!!

  3. Energy PEg • When an object is at some height in a gravitational field it is said to have gravitational potential energy, PEg

  4. Potential Difference

  5. Potential Difference

  6. Potential Difference • Back to the zero pointA convenient zero point to chose in a circuit or any electric system is the “ground”

  7. Battery (cells) • A battery produces electricity by transforming chemical energy into electrical energy

  8. Battery Carbon Electrode + Zinc Electrode Sulfuric Acid

  9. Capacitor • A capacitor is a storehouse of charge and energy that can be reclaimed when needed for a specific application • A capacitor will only charge to the potential difference between the terminals of the battery

  10. Capacitance • Capacitance, C: The ability of a conductor to store energy in the form of electrically separated charges • Capacitance is the ratio of charge to potential difference

  11. Charge Movement

  12. Charge Movement

  13. Circuit Analogy

  14. Types of Current • AC  Alternating current  charges continuously change direction forward and back at 60 Hz • Example: outlets (approx 120 V) • DC  Direct current  charges move in one direction • Example: batteries AC-DC Debate births the Electric Chair

  15. Resistance • Resistance is the impedance of the motion of charge through a conductor • The ratio of potential difference across a conductor to the current it carries

  16. Ohm’s Law

  17. Resistance • Depends on: Length, cross sectional area, material, and temperature

  18. Resistance and Temp

  19. Resistance and Thickness

  20. Resistor • An electronic element that provides a specified resistance. • A current or voltage REGULATOR

  21. Power (it’s Electric!) • Power: Rate at which work is done. OR Rate at which energy is transformed • Electric Power: The rate at which charge carriers convert PEE into non-mechanical energy

  22. Read Chapter 17 pp 593 - 625 HW due on test day: p 599 1-3; p 601 2, 3, 5-9; p 607 1 – 4 (B); p609 1 – 5 p 615 1 – 6; p 616 2-4, 7,9 p 621 1 – 5 Extra Practice p 626 – 628 11, 20 – 54 Reading and Homework

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