Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 43 · 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.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
2. 2.💡 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
3. 3.💡 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. Does bulb 1 glow? (a) No (b) Yes
4. 4.True or false: “a single current path” is true of a series circuit. (a) False (b) True
5. 5.True or false: “a break stops every bulb” is true of a parallel circuit. (a) False (b) True
6. 6.💡 3 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
7. 7.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
8. 8.True or false: “one out, the rest glow” is true of a parallel circuit. (a) True (b) False
9. 9.Which of these is true of a parallel circuit? (a) each gets the full volts (b) bulbs share the voltage (c) a break stops every bulb (d) a single current path
10. 10.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
11. 11.Which of these is true of a series circuit? (a) each gets the full volts (b) many paths for current (c) own switch for each bulb (d) bulbs share the voltage
12. 12.💡 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 1 and 3 are taken out of their holders. How many bulbs glow?
13. 13.Which of these is true of a parallel circuit? (a) a single current path (b) a break stops every bulb (c) bulbs share the voltage (d) used in house wiring
14. 14.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
15. 15.💡 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?
16. 16.💡 3 identical bulbs are joined in parallel across a 4.5 V battery (ideal wires). How many volts does each bulb get? =
17. 17.💡 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
18. 18.💡 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?
19. 19.Which of these is true of a series circuit? (a) one out, the rest glow (b) own switch for each bulb (c) each gets the full volts (d) a break stops every bulb
20. 20.Which of these is true of a series circuit? (a) one bulb out, all go out (b) one out, the rest glow (c) each gets the full volts (d) own switch for each bulb
21. 21.💡 5 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
22. 22.💡 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
23. 23.💡 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 1 is taken out of its holder. How many bulbs glow?
24. 24.True or false: “own switch for each bulb” is true of a parallel circuit. (a) True (b) False
25. 25.💡 Why is house wiring done in parallel? (a) to save copper only (b) so all go off together (c) each gets full voltage (d) to make bulbs dim
26. 26.💡 3 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
27. 27.💡 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
28. 28.Which of these is true of a parallel circuit? (a) own switch for each bulb (b) bulbs share the voltage (c) one bulb out, all go out (d) a break stops every bulb
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.💡 5 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
31. 31.Which of these is true of a parallel circuit? (a) a single current path (b) one bulb out, all go out (c) bulbs share the voltage (d) one out, the rest glow
32. 32.💡 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. How many bulbs glow?
33. 33.True or false: “a break stops every bulb” is true of a series circuit. (a) True (b) False
34. 34.True or false: “one out, the rest glow” is true of a series circuit. (a) True (b) False
35. 35.💡 2 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
36. 36.💡 4 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 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?
38. 38.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
39. 39.💡 6 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
40. 40.💡 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 2 is taken out of its holder. Does bulb 1 glow? (a) Yes (b) No

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