Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 309 · 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 across a 6 V battery (ideal wires). How many volts does each bulb get? =
2. 2.💡 Why is house wiring done in parallel? (a) to save copper only (b) to make bulbs dim (c) so all go off together (d) each gets full voltage
3. 3.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
4. 4.Which of these is true of a series circuit? (a) one out, the rest glow (b) one bulb out, all go out (c) own switch for each bulb (d) each gets the full volts
5. 5.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
6. 6.💡 3 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
7. 7.💡 4 identical bulbs are joined in parallel across a 3 V battery (ideal wires). How many volts does each bulb get? =
8. 8.💡 3 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
9. 9.💡 5 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
10. 10.True or false: “one bulb out, all go out” is true of a series circuit. (a) False (b) True
11. 11.💡 A battery lights 3 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.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
13. 13.True or false: “a single current path” is true of a parallel circuit. (a) False (b) True
14. 14.Which of these is true of a series circuit? (a) a break stops every bulb (b) own switch for each bulb (c) used in house wiring (d) one out, the rest glow
15. 15.True or false: “each gets the full volts” is true of a parallel circuit. (a) True (b) False
16. 16.True or false: “one out, the rest glow” is true of a parallel circuit. (a) True (b) False
17. 17.💡 6 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
18. 18.💡 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?
19. 19.True or false: “a single current path” is true of a series circuit. (a) False (b) True
20. 20.True or false: “own switch for each bulb” is true of a parallel circuit. (a) True (b) False
21. 21.💡 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. All the bulbs are in place. How many bulbs glow?
22. 22.Which of these is true of a series circuit? (a) each gets the full volts (b) one out, the rest glow (c) many paths for current (d) a single current path
23. 23.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they explode (b) they keep glowing (c) they get dimmer (d) they all go out
24. 24.Which of these is true of a series circuit? (a) bulbs share the voltage (b) own switch for each bulb (c) used in house wiring (d) one out, the rest glow
25. 25.💡 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
26. 26.💡 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?
27. 27.💡 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?
28. 28.💡 2 identical bulbs are joined in parallel across a 4.5 V battery (ideal wires). How many volts does each bulb get? =
29. 29.💡 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?
30. 30.True or false: “used in house wiring” is true of a series circuit. (a) True (b) False
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 2 is taken out of its holder. How many bulbs glow?
32. 32.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) True (b) False
33. 33.💡 5 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
34. 34.💡 2 identical bulbs are joined in parallel across a 3 V battery (ideal wires). How many volts does each bulb get? =
35. 35.Which of these is true of a parallel circuit? (a) bulbs share the voltage (b) one bulb out, all go out (c) one out, the rest glow (d) a single current path
36. 36.💡 4 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
37. 37.True or false: “many paths for current” is true of a parallel circuit. (a) True (b) False
38. 38.Which of these is true of a parallel circuit? (a) a single current path (b) many paths for current (c) a break stops every bulb (d) bulbs share the voltage
39. 39.💡 4 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?
40. 40.💡 3 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =

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