Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 217 · 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) many paths for current (b) own switch for each bulb (c) bulbs share the voltage (d) used in house wiring
2. 2.💡 3 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
3. 3.💡 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 2 are taken out of their holders. How many bulbs glow?
4. 4.💡 3 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
5. 5.💡 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) the same (c) brighter
6. 6.💡 Why is house wiring done in parallel? (a) to save copper only (b) each gets full voltage (c) so all go off together (d) to make bulbs dim
7. 7.Which of these is true of a series circuit? (a) used in house wiring (b) one out, the rest glow (c) a single current path (d) many paths for current
8. 8.True or false: “used in house wiring” is true of a series circuit. (a) True (b) False
9. 9.💡 4 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
10. 10.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they get dimmer (b) they all go out (c) they keep glowing (d) they explode
11. 11.💡 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) dimmer (c) the same
12. 12.Which of these is true of a parallel circuit? (a) one out, the rest glow (b) one bulb out, all go out (c) a break stops every bulb (d) a single current path
13. 13.💡 4 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
14. 14.True or false: “many paths for current” is true of a parallel circuit. (a) True (b) False
15. 15.True or false: “a single current path” is true of a series circuit. (a) True (b) False
16. 16.Which of these is true of a series circuit? (a) used in house wiring (b) one out, the rest glow (c) many paths for current (d) a break stops every bulb
17. 17.💡 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 4 is taken out of its holder. How many bulbs glow?
18. 18.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) own switch for each bulb
19. 19.Which of these is true of a parallel circuit? (a) used in house wiring (b) a break stops every bulb (c) one bulb out, all go out (d) bulbs share the voltage
20. 20.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) many paths for current
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 1 and 3 are taken out of their holders. How many bulbs glow?
22. 22.💡 2 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
23. 23.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
24. 24.💡 4 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
25. 25.Which of these is true of a parallel circuit? (a) each gets the full volts (b) one bulb out, all go out (c) a single current path (d) bulbs share the voltage
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. Bulb 2 is taken out of its holder. Does bulb 1 glow? (a) No (b) Yes
27. 27.💡 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 2 are taken out of their holders. How many bulbs glow?
28. 28.True or false: “used in house wiring” is true of a parallel circuit. (a) False (b) True
29. 29.💡 5 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
30. 30.💡 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 3 is taken out of its holder. How many bulbs glow?
31. 31.💡 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?
32. 32.True or false: “each gets the full volts” is true of a series circuit. (a) True (b) False
33. 33.💡 2 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
34. 34.True or false: “a single current path” is true of a parallel circuit. (a) False (b) True
35. 35.True or false: “a break stops every bulb” is true of a series circuit. (a) False (b) True
36. 36.True or false: “one out, the rest glow” is true of a series circuit. (a) True (b) False
37. 37.💡 5 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
38. 38.💡 5 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
39. 39.True or false: “own switch for each bulb” is true of a series circuit. (a) False (b) True
40. 40.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False

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