Electronics Worksheet: Series Circuits

Electronics lesson 8: Series circuits · Set 166 · 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.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) in parallel (b) in series (c) by Wi-Fi (d) not joined
2. 2.💡 2 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
3. 3.💡 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
4. 4.🔗 Series or parallel circuit: “each gets the full volts”? (a) parallel (b) series
5. 5.💡 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) dimmer (c) brighter
6. 6.💡 2 identical bulbs are joined in series with a 5 V battery (ideal wires). How many volts does each bulb get? =
7. 7.True or false: “one out, the rest glow” is true of a parallel circuit. (a) True (b) False
8. 8.💡 In a series circuit, how many paths does the current have? (a) two (b) one (c) one for each bulb (d) none
9. 9.💡 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
10. 10.💡 3 identical bulbs are joined in series with a 4.5 V battery (ideal wires). How many volts does each bulb get? =
11. 11.💡 3 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. How many bulbs glow?
12. 12.💡 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?
13. 13.💡 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?
14. 14.🔗 Series or parallel circuit: “many paths for current”? (a) series (b) parallel
15. 15.True or false: “a single current path” is true of a series circuit. (a) True (b) False
16. 16.💡 5 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. How many bulbs glow?
17. 17.🔗 Series or parallel circuit: “own switch for each bulb”? (a) parallel (b) series
18. 18.🔗 Series or parallel circuit: “used in house wiring”? (a) parallel (b) series
19. 19.💡 4 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
20. 20.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
21. 21.💡 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. Does bulb 4 glow? (a) Yes (b) No
22. 22.🔗 Series or parallel circuit: “a break stops every bulb”? (a) parallel (b) series
23. 23.💡 A battery lights 4 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
24. 24.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
25. 25.💡 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) Yes (b) No
26. 26.💡 5 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 1 glow? (a) No (b) Yes
27. 27.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) parallel (b) series
28. 28.💡 4 identical bulbs are joined in series with an 8 V battery (ideal wires). How many volts does each bulb get? =
29. 29.💡 5 identical bulbs are joined in series with a 10 V battery (ideal wires). How many volts does each bulb get? =
30. 30.💡 3 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?
31. 31.💡 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) dimmer (c) the same
32. 32.💡 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
33. 33.💡 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. Does bulb 3 glow? (a) No (b) Yes
34. 34.True or false: “a break stops every bulb” is true of a parallel circuit. (a) True (b) False
35. 35.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) False (b) True
36. 36.💡 4 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
37. 37.💡 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. How many bulbs glow?
38. 38.🔗 Series or parallel circuit: “one bulb out, all go out”? (a) series (b) parallel
39. 39.True or false: “one out, the rest glow” is true of a series circuit. (a) True (b) False
40. 40.💡 5 identical bulbs are joined in series with a 12.5 V battery (ideal wires). How many volts does each bulb get? =

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids