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LE LEGGI DI OHM Misurare V, i ed R Esercizi su Resistenze in serie e in parallelo

LE LEGGI DI OHM Misurare V, i ed R Esercizi su Resistenze in serie e in parallelo. Lezione tratta dal sito http://ocw.mit.edu/ Del Massachussets Institute of Tecnology Dal corso di Fisica 2. Classe 5^ C LST I.T.T. “Tito Sarrocchi” Siena a.s. 2011-2012. Hour 1: Working with Circuits

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LE LEGGI DI OHM Misurare V, i ed R Esercizi su Resistenze in serie e in parallelo

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  1. LE LEGGI DI OHMMisurare V, i ed REsercizi suResistenze in serie e in parallelo Lezione tratta dal sito http://ocw.mit.edu/ Del MassachussetsInstituteofTecnology Dal corso di Fisica 2

  2. Classe 5^ C LSTI.T.T. “Tito Sarrocchi” Sienaa.s. 2011-2012 • Hour 1: • Working with Circuits • Expt. 4. Part I: Measuring V, I, R

  3. Last Time: • Resistors & Ohm’s Law

  4. Last time

  5. Measuring Voltage & Current

  6. Measuring Potential Difference A voltmeter must be hooked in parallel across the element you want to measure the potential difference across Voltmeters have a very large resistance, so that they don’t affect the circuit too much

  7. Measuring Current A ammeter must be hooked in series with the element you want to measure the current through Ammeters have a very low resistance, so that they don’t affect the circuit too much

  8. Measuring Resistance An Ohmmeter must be hooked in parallel across the element you want to measure the resistance of Ohmmeters apply a voltage and measure the current that flows. They typically don’t work if the resistor is powered (connected to a battery)

  9. EXERCISES

  10. Exercise 1

  11. Exercise 2

  12. Exercise 3

  13. Exercise 4

  14. Exercise 5

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