Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 325 · 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.💡 Why is house wiring done in parallel? (a) so all go off together (b) to make bulbs dim (c) each gets full voltage (d) to save copper only
2. 2.True or false: “each gets the full volts” is true of a series circuit. (a) True (b) False
3. 3.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) False (b) True
4. 4.💡 6 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
5. 5.💡 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. Bulbs 1 and 3 are taken out of their holders. How many bulbs glow?
6. 6.Which of these is true of a series circuit? (a) many paths for current (b) used in house wiring (c) bulbs share the voltage (d) one out, the rest glow
7. 7.💡 2 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
8. 8.💡 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 5 are taken out of their holders. Does bulb 6 glow? (a) Yes (b) No
9. 9.True or false: “a single current path” is true of a series circuit. (a) False (b) True
10. 10.💡 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?
11. 11.Which of these is true of a series circuit? (a) one out, the rest glow (b) used in house wiring (c) each gets the full volts (d) a single current path
12. 12.True or false: “used in house wiring” is true of a parallel circuit. (a) True (b) False
13. 13.Which of these is true of a parallel circuit? (a) a single current path (b) one out, the rest glow (c) one bulb out, all go out (d) bulbs share the voltage
14. 14.💡 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. Bulb 4 is taken out of its holder. How many bulbs glow?
15. 15.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they all go out (b) they keep glowing (c) they explode (d) they get dimmer
16. 16.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
17. 17.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
18. 18.💡 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?
19. 19.💡 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
20. 20.Which of these is true of a parallel circuit? (a) many paths for current (b) one bulb out, all go out (c) a break stops every bulb (d) a single current path
21. 21.💡 4 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
22. 22.True or false: “own switch for each bulb” is true of a parallel circuit. (a) False (b) True
23. 23.💡 4 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
24. 24.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) used in house wiring (c) a single current path (d) one bulb out, all go out
25. 25.Which of these is true of a series circuit? (a) many paths for current (b) each gets the full volts (c) own switch for each bulb (d) one bulb out, all go out
26. 26.💡 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 1 glow? (a) No (b) Yes
27. 27.💡 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 1 is taken out of its holder. How many bulbs glow?
28. 28.💡 A battery lights 3 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.True or false: “bulbs share the voltage” is true of a series circuit. (a) True (b) False
30. 30.💡 2 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
31. 31.💡 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
32. 32.Which of these is true of a series circuit? (a) one out, the rest glow (b) own switch for each bulb (c) a break stops every bulb (d) each gets the full volts
33. 33.True or false: “a break stops every bulb” is true of a parallel circuit. (a) True (b) False
34. 34.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
35. 35.💡 6 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
36. 36.💡 3 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
37. 37.💡 3 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
38. 38.True or false: “used in house wiring” is true of a series circuit. (a) True (b) False
39. 39.💡 3 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
40. 40.💡 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. Bulb 1 is taken out of its holder. How many bulbs glow?

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