Electronics Worksheet: Series Circuits

Electronics lesson 8: Series circuits · Set 180 · 40 questions

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.

1. 1.💡 In a series circuit, how many paths does the current have? (a) two (b) one for each bulb (c) one (d) none
2. 2.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) in parallel (b) not joined (c) in series (d) by Wi-Fi
3. 3.💡 6 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. Does bulb 3 glow? (a) No (b) Yes
4. 4.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
5. 5.💡 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?
6. 6.💡 3 identical bulbs are joined in series with a 7.5 V battery (ideal wires). How many volts does each bulb get? =
7. 7.🔗 Series or parallel circuit: “own switch for each bulb”? (a) series (b) parallel
8. 8.True or false: “own switch for each bulb” is true of a series circuit. (a) False (b) True
9. 9.🔗 Series or parallel circuit: “many paths for current”? (a) parallel (b) series
10. 10.🔗 Series or parallel circuit: “each gets the full volts”? (a) parallel (b) series
11. 11.🔗 Series or parallel circuit: “one bulb out, all go out”? (a) parallel (b) series
12. 12.True or false: “a break stops every bulb” is true of a parallel circuit. (a) False (b) True
13. 13.💡 A battery lights 3 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) dimmer (c) the same
14. 14.True or false: “one out, the rest glow” is true of a series circuit. (a) False (b) True
15. 15.💡 5 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?
16. 16.💡 4 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 3 is taken out of its holder. Does bulb 4 glow? (a) Yes (b) No
17. 17.💡 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. Does bulb 1 glow? (a) No (b) Yes
18. 18.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 5 glow? (a) No (b) Yes
19. 19.💡 A battery lights 2 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) the same (c) dimmer
20. 20.🔗 Series or parallel circuit: “one out, the rest glow”? (a) series (b) parallel
21. 21.💡 4 identical bulbs are joined in series with an 8 V battery (ideal wires). How many volts does each bulb get? =
22. 22.💡 2 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
23. 23.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) parallel (b) series
24. 24.💡 A battery lights 4 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) the same (c) dimmer
25. 25.True or false: “one bulb out, all go out” is true of a series circuit. (a) True (b) False
26. 26.💡 4 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. Does bulb 3 glow? (a) Yes (b) No
27. 27.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
28. 28.💡 3 identical bulbs are joined in series with a 3 V battery (ideal wires). How many volts does each bulb get? =
29. 29.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
30. 30.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 1 glow? (a) No (b) Yes
31. 31.💡 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. Does bulb 2 glow? (a) No (b) Yes
32. 32.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 2 glow? (a) No (b) Yes
33. 33.💡 2 identical bulbs are joined in series with a 3 V battery (ideal wires). How many volts does each bulb get? =
34. 34.💡 A battery lights 5 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) the same (c) dimmer
35. 35.True or false: “many paths for current” is true of a parallel circuit. (a) True (b) False
36. 36.🔗 Series or parallel circuit: “a single current path”? (a) series (b) parallel
37. 37.💡 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. Does bulb 2 glow? (a) Yes (b) No
38. 38.True or false: “one out, the rest glow” is true of a parallel circuit. (a) False (b) True
39. 39.True or false: “a break stops every bulb” is true of a series circuit. (a) False (b) True
40. 40.🔗 Series or parallel circuit: “used in house wiring”? (a) series (b) parallel

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