Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 148 · 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.True or false: “a single current path” is true of a series circuit. (a) True (b) False
2. 2.💡 A battery lights 5 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
3. 3.Which of these is true of a parallel circuit? (a) bulbs share the voltage (b) one bulb out, all go out (c) a single current path (d) many paths for current
4. 4.💡 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?
5. 5.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they explode (b) they keep glowing (c) they all go out (d) they get dimmer
6. 6.💡 5 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?
7. 7.💡 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 4 are taken out of their holders. How many bulbs glow?
8. 8.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
9. 9.Which of these is true of a series circuit? (a) own switch for each bulb (b) many paths for current (c) used in house wiring (d) bulbs share the voltage
10. 10.💡 2 identical bulbs are joined in parallel across a 3 V battery (ideal wires). How many volts does each bulb get? =
11. 11.Which of these is true of a series circuit? (a) one out, the rest glow (b) many paths for current (c) one bulb out, all go out (d) used in house wiring
12. 12.True or false: “used in house wiring” is true of a parallel circuit. (a) False (b) True
13. 13.💡 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 2 and 3 are taken out of their holders. 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) False (b) True
15. 15.💡 A battery lights 2 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) the same (b) brighter (c) dimmer
16. 16.💡 Why is house wiring done in parallel? (a) to save copper only (b) each gets full voltage (c) to make bulbs dim (d) so all go off together
17. 17.Which of these is true of a parallel circuit? (a) own switch for each bulb (b) a break stops every bulb (c) a single current path (d) one bulb out, all go out
18. 18.💡 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?
19. 19.Which of these is true of a parallel circuit? (a) one bulb out, all go out (b) a break stops every bulb (c) one out, the rest glow (d) bulbs share the voltage
20. 20.True or false: “used in house wiring” is true of a series circuit. (a) False (b) True
21. 21.💡 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?
22. 22.True or false: “bulbs share the voltage” is true of a series circuit. (a) True (b) False
23. 23.💡 4 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
24. 24.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
25. 25.💡 2 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
26. 26.💡 4 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
27. 27.💡 6 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
28. 28.💡 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?
29. 29.💡 3 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?
30. 30.💡 3 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
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. Bulbs 3 and 4 are taken out of their holders. Does bulb 2 glow? (a) Yes (b) No
32. 32.💡 2 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
33. 33.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
34. 34.True or false: “a break stops every bulb” is true of a parallel circuit. (a) False (b) True
35. 35.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 5 of the switches are OFF and the rest are ON. How many bulbs glow?
36. 36.💡 6 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
37. 37.💡 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 1 and 3 are taken out of their holders. How many bulbs glow?
38. 38.True or false: “each gets the full volts” is true of a series circuit. (a) False (b) True
39. 39.💡 5 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?
40. 40.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) one bulb out, all go out (c) used in house wiring (d) a single current path

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