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Electricity In Agriculture

Electricity In Agriculture. Electricity Plus Imagination. Objectives. Identify the importance of electricity in agriculture on a hand out with 90% accuracy. Define key terms on a handout with 80% accuracy. Differentiate between an AC and DC circuit with 100% accuracy on a handout.

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Electricity In Agriculture

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  1. Electricity In Agriculture

  2. Electricity Plus Imagination

  3. Objectives • Identify the importance of electricity in agriculture on a hand out with 90% accuracy. • Define key terms on a handout with 80% accuracy. • Differentiate between an AC and DC circuit with 100% accuracy on a handout. • Compare insulators and conductors on a handout with 100% accuracy. • Calculate cost of electricity in a real world environment with 80% accuracy.

  4. Reasons to learn • Why is electricity important your life? • Why is electricity important in Agriculture? • Why do we need to understand how electricity works?

  5. Questions To Answer • What are some terms associated with electricity? • What are some things that you use electricity for? • What are is the difference in AC and DC electricity? • What are insulators and conductors?

  6. Types of current • Electric Current- is the flow of electrons in a conductor

  7. Advantages and Disadvantages AC Electricity DC Electricity Batteries Safer Portable • Standard use • More power • Travels Farther

  8. Vocabulary • Electricity- a fundamental form of energy observable in positive and negative forms that occurs naturally (as in lightning) or is produced (as in a generator) and that is expressed in terms of the movement and interaction of electrons. • Electric Circuits- a continuous conductor that provides a path for the flow of electrons away from and back to an electrical source.

  9. More Vocabulary • Watts-Measuring unit of power. • Amperage- the amount of electric current flowing past a point in a circuit every second. • Voltage- potential force in an electrical system; electrical pressure. • Ohm-Unit of electric resistance. • Voltage Drop- decrease in voltage of a long span of wire because of increased resistance.

  10. Conductor vs. Insulator • Conductor- Material that have little resistance of current • Insulator- Material that has strong resistance of current

  11. Equations • Watts= Volts X Amps • Volts= Watts/Amps • Amps= Watts/Volts • Kilowatt= Watts/1000 • Electric Cost= Kilowatt hrs. X Cost of service

  12. Reading an Electric Meter

  13. Figuring Total Electric Cost • Original Reading is 35947 • Next month reading is 42058 • Cost is $0.0175 per kilowatt hour • What is the Cost of electricity for that month? Solution 42058-35947=6111 kW h 6111 kW-h X $.0175=$106.94

  14. Figure Electric Bill • 5 amp fan operating on a 240V circuit. It operates 12 hours a day for a week. The cost of electricity is $0.02 per kilowatt hour. How Much does this fan cost for a four week month?

  15. Solution • 5A X 240V= 1200W • 1200W / 1000= 1.2 kW • 1.2 kW X 12 hrs= 14.4 kW hrs per day • 14.4 kW hrs X 7 days= 100.8 kW hrs per week • 100.8 kW hrs X 4 weeks= 403.2 kW hrs for month • 403.2 kW hrs X $0.02= $8.064 for the month

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