Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 7 · 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.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they explode (b) they get dimmer (c) they keep glowing (d) they all go out
2. 2.💡 2 identical bulbs are joined in parallel across a 4.5 V battery (ideal wires). How many volts does each bulb get? =
3. 3.💡 Why is house wiring done in parallel? (a) to make bulbs dim (b) to save copper only (c) so all go off together (d) each gets full voltage
4. 4.💡 5 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
5. 5.Which of these is true of a series circuit? (a) one out, the rest glow (b) own switch for each bulb (c) bulbs share the voltage (d) used in house wiring
6. 6.Which of these is true of a parallel circuit? (a) bulbs share the voltage (b) many paths for current (c) one bulb out, all go out (d) a break stops every bulb
7. 7.Which of these is true of a series circuit? (a) one out, the rest glow (b) used in house wiring (c) one bulb out, all go out (d) each gets the full volts
8. 8.True or false: “many paths for current” is true of a series circuit. (a) False (b) True
9. 9.💡 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. Bulb 3 is taken out of its holder. Does bulb 4 glow? (a) Yes (b) No
10. 10.💡 4 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
11. 11.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
12. 12.💡 2 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
13. 13.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) used in house wiring
14. 14.💡 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
15. 15.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
16. 16.💡 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?
17. 17.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
18. 18.💡 6 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?
19. 19.Which of these is true of a parallel circuit? (a) bulbs share the voltage (b) own switch for each bulb (c) one bulb out, all go out (d) a single current path
20. 20.💡 A battery lights 3 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) the same (b) dimmer (c) brighter
21. 21.💡 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?
22. 22.💡 3 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
23. 23.💡 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?
24. 24.Which of these is true of a parallel circuit? (a) a single current path (b) a break stops every bulb (c) one bulb out, all go out (d) each gets the full volts
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.True or false: “a single current path” is true of a parallel circuit. (a) False (b) True
27. 27.True or false: “used in house wiring” is true of a parallel circuit. (a) False (b) True
28. 28.💡 A battery lights 4 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) dimmer (b) brighter (c) the same
29. 29.💡 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?
30. 30.True or false: “a break stops every bulb” is true of a parallel circuit. (a) True (b) False
31. 31.💡 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. Bulbs 1 and 2 are taken out of their holders. How many bulbs glow?
32. 32.💡 4 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?
33. 33.💡 3 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
34. 34.True or false: “used in house wiring” is true of a series circuit. (a) True (b) False
35. 35.Which of these is true of a series circuit? (a) one out, the rest glow (b) each gets the full volts (c) a single current path (d) own switch for each bulb
36. 36.💡 5 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
37. 37.💡 3 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
38. 38.💡 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 5 and 6 are taken out of their holders. How many bulbs glow?
39. 39.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) True (b) False
40. 40.💡 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) dimmer (c) the same

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