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Welcome! The Topic For Today Is…

Welcome! The Topic For Today Is…. Your Topic. Topic 1: 200. Question: Ammeters measure… Answer Current. Back. Topic 1: 400. Question: Voltmeters measure… Answer Potential Difference. Back. Topic 1: 600. Question:

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Welcome! The Topic For Today Is…

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  1. Welcome! The Topic For Today Is…

  2. Your Topic

  3. Topic 1: 200 • Question: • Ammeters measure… • Answer • Current Back

  4. Topic 1: 400 • Question: • Voltmeters measure… • Answer • Potential Difference Back

  5. Topic 1: 600 • Question: • Ammeters are connected in while voltmeters are connected in . • Answer • Series; Parallel Back

  6. Topic 1: 800 • Question: • Ammeters have resistance while voltmeters have resistance. • Answer • Very little; Very much Back

  7. Topic 1: 1000 • Question: • A galvanometer is… • Answer • A device to measure extremely small currents. Back

  8. Topic 2: 200 • Question: • What is resistivity? • Answer • Resistivity is an intrinsic property of a material, which is a measure of the conductive ability of the material. The lower the value, the more conductive the material is. Back

  9. Topic 2: 400 • Question: • What is a resistor? • Answer • A component in an electrical circuit, which “resists” the flow of electrons. Back

  10. Topic 2: 600 • Question: • What is Resistance? • Answer • The ratio of the voltage drop across a device to the current flowing in it. Or the hindrance to the flow of charge. Back

  11. Topic 2: 800 • Question: • As the length of a conductor increases, its resistance will while its resistivity will . • Answer • Increase; remain the same Back

  12. Topic 2: 1000 • Question: • Determine the resistance of a copper wire that is 2.00 meters in length and has a radius of 150.m • Answer • 0.487 Back

  13. Topic 3: 200 • Question: • Conventional Current is… • Answer • the flow of positive charge. Back

  14. Topic 3: 400 • Question: • A 40 Volt battery is connected to a 20 Ohm resistor. What is the current flowing in the circuit? • Answer • 2 Amperes Back

  15. Topic 3: 600 • Question: • 2 amperes of current is equivalent to how many electrons per second? • Answer • 1.25x1019 electrons per second Back

  16. Topic 3: 800 • Question: • A cloud transfers 25 Coulombs of charge to the earth during a discharge lasting 0.75 seconds. What is the current flow. • Answer • 33.3 Amperes Back

  17. Topic 3: 1000 • Question: • A cloud transfers 10,000 Coulombs of charge to the earth during a discharge lasting 0.50 seconds. If the potential difference between the cloud and the ground is 25,000,000 Volts, what is the resistance of the atmosphere? • Answer • 1250 Ohms Back

  18. Topic 4: 200 • Question: • How do you find the total resistance and voltage in a series circuit? • Answer • You sum up the individual values for R and V. Back

  19. Topic 4: 400 • Question: • Adding another resistor to a series circuit will cause the equivalent resistance to… • Answer • Increase Back

  20. Topic 4: 600 • Question: • A 2, 4 and 6 Ohm resistor are connected in parallel. Which resistor will have the greatest current and which one will have the least? • Answer • The 2 resistor will have the greatest current while the 6 resistor will have the least.Remember: Electricity follows the path of least resistance. Back

  21. Topic 4: 800 • Question: • Determine the equivalent resistance for 3 identical 6 resistors connected in series and parallel • Answer • In series: Req = 18 • In parallel: Req = 2 Back

  22. Topic 4: 1000 • Question: • A 16 and 26 Ohm resistor are connected in parallel across a potential difference of 40. V. What is the current in the circuit? • Answer • 4.0A Back

  23. Topic 5: 200 • Question: • Electric field lines go from to . • Answer • Positive to negative Back

  24. Topic 5: 400 • Question: • The units for the electric field intensity are: • Answer • N/C or V/m Back

  25. Topic 5: 600 • Question: • Conservation of charge means… • Answer • The total charge of a system is constant. It can neither be created, nor destroyed. Back

  26. Topic 5: 800 • Question: • Explain why a neutral object can be attracted to a charged object. • Answer • Due to separation of charge. Electrons are either attracted to the surface or repelled resulting in a surface charge. Back

  27. Topic 5: 1000 • Question: • A proton experiences a force of 2.0x10-20N. What is the electric field? • Answer • 0.125N/C Back

  28. Bonus Question: 5000 pts. • Question: • A proton is released from rest between two parallel plates where the electric field strength is 25,000 V/m. Determine the acceleration of the proton. • Answer • 2.4x1012 m/s2 Back

  29. Daily Double The Winner Of The Last Round Write Down How Much Money You Are Willing To Risk If You get the Question write you win that money If you get it wrong you Loss the money!

  30. Daily Double The Winner Of The Last Round Write Down How Much Money You Are Willing To Risk If You get the Question write you win that money If you get it wrong you Loss the money!

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