Electronics Worksheet: Series Circuits

Electronics lesson 8: Series circuits · Set 155 · 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.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) False (b) True
2. 2.💡 3 identical bulbs are joined in series with a 7.5 V battery (ideal wires). How many volts does each bulb get? =
3. 3.💡 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. How many bulbs glow?
4. 4.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) not joined (b) by Wi-Fi (c) in parallel (d) in series
5. 5.💡 2 identical bulbs are joined in series with a 2 V battery (ideal wires). How many volts does each bulb get? =
6. 6.🔗 Series or parallel circuit: “a break stops every bulb”? (a) parallel (b) series
7. 7.True or false: “one out, the rest glow” is true of a parallel circuit. (a) True (b) False
8. 8.💡 5 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?
9. 9.💡 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) dimmer (c) brighter
10. 10.🔗 Series or parallel circuit: “one bulb out, all go out”? (a) series (b) parallel
11. 11.💡 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. How many bulbs glow?
12. 12.💡 A battery lights 3 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
13. 13.💡 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?
14. 14.💡 A battery lights 5 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) dimmer (b) brighter (c) the same
15. 15.🔗 Series or parallel circuit: “a single current path”? (a) parallel (b) series
16. 16.💡 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
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. How many bulbs glow?
18. 18.True or false: “own switch for each bulb” is true of a parallel circuit. (a) False (b) True
19. 19.💡 In a series circuit, how many paths does the current have? (a) one for each bulb (b) two (c) one (d) none
20. 20.💡 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) Yes (b) No
21. 21.True or false: “used in house wiring” is true of a series circuit. (a) False (b) True
22. 22.True or false: “a single current path” is true of a series circuit. (a) False (b) True
23. 23.💡 2 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
24. 24.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
25. 25.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
26. 26.💡 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) No (b) Yes
27. 27.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
28. 28.💡 3 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?
29. 29.💡 4 identical bulbs are joined in series with a 16 V battery (ideal wires). How many volts does each bulb get? =
30. 30.🔗 Series or parallel circuit: “one out, the rest glow”? (a) series (b) parallel
31. 31.💡 3 identical bulbs are joined in series with a 12 V battery (ideal wires). How many volts does each bulb get? =
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.🔗 Series or parallel circuit: “each gets the full volts”? (a) parallel (b) series
34. 34.💡 5 identical bulbs are joined in series with a 7.5 V battery (ideal wires). How many volts does each bulb get? =
35. 35.💡 6 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?
36. 36.🔗 Series or parallel circuit: “bulbs share the voltage”? (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 3 is taken out of its holder. Does bulb 1 glow? (a) No (b) Yes
38. 38.💡 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
39. 39.🔗 Series or parallel circuit: “used in house wiring”? (a) series (b) parallel
40. 40.💡 2 identical bulbs are joined in series with a 3 V battery (ideal wires). How many volts does each bulb get? =

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