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Mastering Ohm's Law in Circuits

Learn about Ohm's Law, resistance, voltage, current, and power in circuits. Test your knowledge with interactive questions and answers. Explore series and parallel circuits. Understand the relationship between current, voltage, and resistance.

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Mastering Ohm's Law in Circuits

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  1. Ohm’s Law and Circuits (Answers on final slide)

  2. 1. The rate of charge flow in a circuit is known as … • Resistance • Voltage • Current • Power • Electrical Energy [Default] [MC Any] [MC All]

  3. 2. The potential difference between the ends of a wire that is required for current to flow is known as the… • Resistance • Voltage • Current • Power • Electrical Energy [Default] [MC Any] [MC All]

  4. 3. The opposition to current flow is called… • Resistance • Voltage • Current • Power • Electrical Energy [Default] [MC Any] [MC All]

  5. 4. Which of these statements are true about electric current? Choose all that apply. • The rate of charge flow • Measured in Ohms • Inversely related to resistance • Measured in Amperes • Requires an open circuit to flow • Requires a potential difference to flow • All of these statements are true • None of these statements are true. [Default] [MC Any] [MC All]

  6. 5. Which of the following are factors that affect resistance in a wire? Choose all that apply. • material • temperature • length • diameter • current flow • All of the above • None of the above [Default] [MC Any] [MC All]

  7. 6. Which statements are true for a series circuit? Choose all that apply. • Voltage is the same across all parts • Current is the same across all parts • Total resistance is the sum of the individual resistors • Individual currents add to equal the total current through the system • Individual voltages add to equal the total voltage put into the system • There is only one path for current to flow [Default] [MC Any] [MC All]

  8. 7. Which statements are true for a parallel circuit? Choose all that apply. • Voltage is the same across all parts • Current is the same across all parts • Total resistance is the sum of the individual resistors • Individual currents add to equal the total current through the system • Individual voltages add to equal the total voltage put into the system • There are branches of current [Default] [MC Any] [MC All]

  9. 8. Electrical energy can be measured in…(Choose all that apply) • Watts • Ohms • Joules • Kilowatt-hours • Watt seconds • Volts [Default] [MC Any] [MC All]

  10. 9. The relationship between current, voltage, and resistance in a circuit is known as… • Coulomb’s Law • Kirchoff’s Law • Ampere’s Law • Ohm’s Law [Default] [MC Any] [MC All]

  11. 10. If you build circuit A and then add a resistor as in circuit B, the light will • Look brighter • Look less bright • There will no change in brightness A B

  12. 11. Which shows the correct way to use an ammeter? A B

  13. 12. Which resistor will have the greatest current? • 50  • 10  • They have the same current

  14. 13. Which resistor will have the greatest voltage? • 50  • 10  • They have the same voltage

  15. 14. Which resistor will have the greatest current? • 50  • 10  • They have the same current

  16. 15. What is the total resistance in this circuit? • 6.4  • 21  • 38  • 75 

  17. 16. What is the total resistance in this circuit? • 6.4  • 21  • 38  • 75 

  18. Answers 9. D 10. B 11. B 12. B 13. C 14. C 15. C 16. B • C • B • A • ACDF • ABCD • BCEF • ADF • CDE

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