Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 126 · 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.💡 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?
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) dimmer (b) brighter (c) the same
3. 3.💡 Why is house wiring done in parallel? (a) so all go off together (b) to make bulbs dim (c) to save copper only (d) each gets full voltage
4. 4.💡 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. Does bulb 2 glow? (a) No (b) Yes
5. 5.💡 5 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
6. 6.💡 4 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
7. 7.Which of these is true of a parallel circuit? (a) bulbs share the voltage (b) a break stops every bulb (c) a single current path (d) used in house wiring
8. 8.💡 6 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
9. 9.💡 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?
10. 10.💡 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 3 are taken out of their holders. How many bulbs glow?
11. 11.💡 4 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
12. 12.Which of these is true of a series circuit? (a) bulbs share the voltage (b) many paths for current (c) one out, the rest glow (d) own switch for each bulb
13. 13.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) False (b) True
14. 14.💡 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?
15. 15.True or false: “own switch for each bulb” is true of a parallel circuit. (a) False (b) True
16. 16.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
17. 17.Which of these is true of a series circuit? (a) own switch for each bulb (b) one out, the rest glow (c) many paths for current (d) a single current path
18. 18.True or false: “many paths for current” is true of a parallel circuit. (a) True (b) False
19. 19.💡 2 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
20. 20.💡 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?
21. 21.💡 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 2 and 3 are taken out of their holders. How many bulbs glow?
22. 22.💡 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?
23. 23.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) a single current path (c) many paths for current (d) bulbs share the voltage
24. 24.Which of these is true of a parallel circuit? (a) a single current path (b) a break stops every bulb (c) each gets the full volts (d) bulbs share the voltage
25. 25.Which of these is true of a series circuit? (a) own switch for each bulb (b) used in house wiring (c) each gets the full volts (d) a break stops every bulb
26. 26.💡 2 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
27. 27.Which of these is true of a series circuit? (a) many paths for current (b) one bulb out, all go out (c) own switch for each bulb (d) one out, the rest glow
28. 28.💡 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 5 are taken out of their holders. How many bulbs glow?
29. 29.💡 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?
30. 30.💡 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?
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. Bulb 1 is taken out of its holder. How many bulbs glow?
32. 32.💡 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 3 are taken out of their holders. Does bulb 4 glow? (a) No (b) Yes
33. 33.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
34. 34.Which of these is true of a parallel circuit? (a) one bulb out, all go out (b) bulbs share the voltage (c) a break stops every bulb (d) one out, the rest glow
35. 35.💡 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?
36. 36.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
37. 37.True or false: “a break stops every bulb” is true of a series circuit. (a) False (b) True
38. 38.💡 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?
39. 39.💡 5 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
40. 40.💡 A battery lights 2 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

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