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Electronics Worksheet: Series Circuits

Electronics lesson 8: Series circuits · Set 125 · 40 questions
TalentJR

Remember (One path for all): One path: if any bulb is removed or broken, no bulb glows. Identical bulbs share the voltage: each gets battery volts ÷ number of bulbs. More bulbs in series → each gets less → all glow dimmer.

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  1. 1.💡 A battery lights 3 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) dimmer (b) the same (c) brighter
  2. 2.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) by Wi-Fi (b) in parallel (c) in series (d) not joined
  3. 3.🔗 Series or parallel circuit: “used in house wiring”? (a) parallel (b) series
  4. 4.💡 A battery lights 2 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) brighter (c) dimmer
  5. 5.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 6 is taken out of its holder. How many bulbs glow?
  6. 6.🔗 Series or parallel circuit: “each gets the full volts”? (a) parallel (b) series
  7. 7.💡 5 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 4 is taken out of its holder. How many bulbs glow?
  8. 8.True or false: “a single current path” is true of a series circuit. (a) False (b) True
  9. 9.💡 In a series circuit, how many paths does the current have? (a) none (b) one (c) two (d) one for each bulb
  10. 10.💡 3 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 1 is taken out of its holder. How many bulbs glow?
  11. 11.💡 4 identical bulbs are joined in series with a 10 V battery (ideal wires). How many volts does each bulb get? =
  12. 12.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
  13. 13.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 1 is taken out of its holder. Does bulb 4 glow? (a) No (b) Yes
  14. 14.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
  15. 15.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. How many bulbs glow?
  16. 16.💡 3 identical bulbs are joined in series with a 4.5 V battery (ideal wires). How many volts does each bulb get? =
  17. 17.True or false: “a break stops every bulb” is true of a parallel circuit. (a) False (b) True
  18. 18.True or false: “each gets the full volts” is true of a series circuit. (a) True (b) False
  19. 19.💡 4 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 4 is taken out of its holder. Does bulb 1 glow? (a) Yes (b) No
  20. 20.💡 5 identical bulbs are joined in series with a 12.5 V battery (ideal wires). How many volts does each bulb get? =
  21. 21.💡 5 identical bulbs are joined in series with a 20 V battery (ideal wires). How many volts does each bulb get? =
  22. 22.💡 4 identical bulbs are joined in series with a 12 V battery (ideal wires). How many volts does each bulb get? =
  23. 23.🔗 Series or parallel circuit: “a single current path”? (a) series (b) parallel
  24. 24.True or false: “one out, the rest glow” is true of a parallel circuit. (a) False (b) True
  25. 25.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
  26. 26.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) False (b) True
  27. 27.🔗 Series or parallel circuit: “many paths for current”? (a) parallel (b) series
  28. 28.💡 5 identical bulbs are joined in series with a 15 V battery (ideal wires). How many volts does each bulb get? =
  29. 29.💡 5 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 5 is taken out of its holder. How many bulbs glow?
  30. 30.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) series (b) parallel
  31. 31.True or false: “own switch for each bulb” is true of a parallel circuit. (a) True (b) False
  32. 32.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 1 is taken out of its holder. How many bulbs glow?
  33. 33.💡 A battery lights 4 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) dimmer (b) the same (c) brighter
  34. 34.🔗 Series or parallel circuit: “own switch for each bulb”? (a) parallel (b) series
  35. 35.💡 2 identical bulbs are joined in series with a 3 V battery (ideal wires). How many volts does each bulb get? =
  36. 36.True or false: “one bulb out, all go out” is true of a series circuit. (a) True (b) False
  37. 37.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 2 is taken out of its holder. How many bulbs glow?
  38. 38.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 5 is taken out of its holder. Does bulb 3 glow? (a) Yes (b) No
  39. 39.💡 5 identical bulbs are joined in series with a 10 V battery (ideal wires). How many volts does each bulb get? =
  40. 40.💡 2 identical bulbs are joined in series with an 8 V battery (ideal wires). How many volts does each bulb get? =

Answer key

  1. dimmer
  2. in series
  3. parallel
  4. dimmer
  5. 0
  6. parallel
  7. 0
  8. True
  9. one
  10. 0
  11. 2.5
  12. True
  13. No
  14. False
  15. 2
  16. 1.5
  17. False
  18. False
  19. No
  20. 2.5
  21. 4
  22. 3
  23. series
  24. True
  25. True
  26. False
  27. parallel
  28. 3
  29. 0
  30. series
  31. True
  32. 0
  33. dimmer
  34. parallel
  35. 1.5
  36. True
  37. 0
  38. No
  39. 2
  40. 4

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