Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 111 · 40 questions

Remember (A path for each): Each bulb has its own path: removing one leaves the others glowing. Each bulb gets the full battery voltage. Total current = add the current of each path (n identical bulbs → n × one bulb’s current).

1. 1.💡 2 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. All the bulbs are in place. How many bulbs glow?
2. 2.Which of these is true of a parallel circuit? (a) a single current path (b) each gets the full volts (c) one bulb out, all go out (d) bulbs share the voltage
3. 3.💡 2 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
4. 4.Which of these is true of a parallel circuit? (a) a single current path (b) one bulb out, all go out (c) a break stops every bulb (d) own switch for each bulb
5. 5.True or false: “many paths for current” is true of a parallel circuit. (a) True (b) False
6. 6.💡 2 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. Bulb 2 is taken out of its holder. How many bulbs glow?
7. 7.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they all go out (b) they keep glowing (c) they get dimmer (d) they explode
8. 8.Which of these is true of a series circuit? (a) own switch for each bulb (b) each gets the full volts (c) one out, the rest glow (d) a break stops every bulb
9. 9.True or false: “used in house wiring” is true of a series circuit. (a) True (b) False
10. 10.💡 3 identical bulbs are in parallel and each bulb has its own switch on its path. 1 of the switches is OFF and the rest are ON. How many bulbs glow?
11. 11.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
12. 12.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 1 of the switches is OFF and the rest are ON. How many bulbs glow?
13. 13.💡 5 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
14. 14.True or false: “a single current path” is true of a series circuit. (a) False (b) True
15. 15.Which of these is true of a series circuit? (a) used in house wiring (b) a single current path (c) many paths for current (d) own switch for each bulb
16. 16.💡 5 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. Bulbs 1 and 5 are taken out of their holders. How many bulbs glow?
17. 17.True or false: “one out, the rest glow” is true of a series circuit. (a) False (b) True
18. 18.💡 Why is house wiring done in parallel? (a) each gets full voltage (b) to make bulbs dim (c) so all go off together (d) to save copper only
19. 19.💡 6 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. Bulbs 2 and 4 are taken out of their holders. How many bulbs glow?
20. 20.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) one bulb out, all go out (c) a single current path (d) many paths for current
21. 21.💡 4 identical bulbs are in parallel and each bulb has its own switch on its path. 1 of the switches is OFF and the rest are ON. How many bulbs glow?
22. 22.💡 3 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. Bulb 1 is taken out of its holder. How many bulbs glow?
23. 23.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 2 of the switches are OFF and the rest are ON. How many bulbs glow?
24. 24.💡 2 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
25. 25.💡 3 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. All the bulbs are in place. How many bulbs glow?
26. 26.💡 6 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
27. 27.Which of these is true of a series circuit? (a) used in house wiring (b) one bulb out, all go out (c) own switch for each bulb (d) one out, the rest glow
28. 28.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) False (b) True
29. 29.💡 5 identical bulbs are in parallel and each bulb has its own switch on its path. 3 of the switches are OFF and the rest are ON. How many bulbs glow?
30. 30.💡 A battery lights 2 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) dimmer (b) the same (c) brighter
31. 31.💡 4 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. All the bulbs are in place. How many bulbs glow?
32. 32.True or false: “one bulb out, all go out” is true of a series circuit. (a) False (b) True
33. 33.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
34. 34.💡 6 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. Bulb 4 is taken out of its holder. How many bulbs glow?
35. 35.💡 A battery lights 4 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) brighter (b) the same (c) dimmer
36. 36.💡 6 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
37. 37.💡 2 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
38. 38.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
39. 39.💡 A battery lights 3 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) brighter (b) dimmer (c) the same
40. 40.💡 2 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =

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