Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 312 · 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.True or false: “used in house wiring” is true of a parallel circuit. (a) False (b) True
2. 2.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) one out, the rest glow (c) a single current path (d) bulbs share the voltage
3. 3.💡 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
4. 4.Which of these is true of a parallel circuit? (a) one bulb out, all go out (b) own switch for each bulb (c) bulbs share the voltage (d) a single current path
5. 5.True or false: “used in house wiring” is true of a series circuit. (a) False (b) True
6. 6.💡 6 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?
7. 7.Which of these is true of a series circuit? (a) a break stops every bulb (b) each gets the full volts (c) many paths for current (d) one out, the rest glow
8. 8.💡 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 2 and 3 are taken out of their holders. How many bulbs glow?
9. 9.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they all go out (b) they explode (c) they get dimmer (d) they keep glowing
10. 10.Which of these is true of a parallel circuit? (a) a single current path (b) one bulb out, all go out (c) used in house wiring (d) a break stops every bulb
11. 11.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
12. 12.💡 5 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
13. 13.Which of these is true of a series circuit? (a) one out, the rest glow (b) one bulb out, all go out (c) used in house wiring (d) many paths for current
14. 14.💡 Why is house wiring done in parallel? (a) to save copper only (b) to make bulbs dim (c) each gets full voltage (d) so all go off together
15. 15.💡 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?
16. 16.💡 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?
17. 17.💡 5 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
18. 18.True or false: “a break stops every bulb” is true of a series circuit. (a) False (b) True
19. 19.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) True (b) False
20. 20.💡 5 identical bulbs are joined in parallel across a 3 V battery (ideal wires). How many volts does each bulb get? =
21. 21.💡 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
22. 22.True or false: “a single current path” is true of a series circuit. (a) False (b) True
23. 23.💡 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 4 are taken out of their holders. Does bulb 1 glow? (a) Yes (b) No
24. 24.💡 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?
25. 25.True or false: “one out, the rest glow” is true of a series circuit. (a) True (b) False
26. 26.💡 2 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
27. 27.💡 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
28. 28.Which of these is true of a parallel circuit? (a) a single current path (b) a break stops every bulb (c) one bulb out, all go out (d) each gets the full volts
29. 29.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
30. 30.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) a single current path
31. 31.💡 5 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
32. 32.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
33. 33.💡 4 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
34. 34.💡 3 identical bulbs are joined in parallel across a 1.5 V battery (ideal wires). How many volts does each bulb get? =
35. 35.True or false: “bulbs share the voltage” is true of a series circuit. (a) True (b) False
36. 36.💡 3 identical bulbs are joined in parallel across a 3 V battery (ideal wires). How many volts does each bulb get? =
37. 37.True or false: “many paths for current” is true of a series circuit. (a) False (b) True
38. 38.💡 2 identical bulbs are joined in parallel across a 3 V battery (ideal wires). How many volts does each bulb get? =
39. 39.💡 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 4 and 5 are taken out of their holders. Does bulb 6 glow? (a) Yes (b) No
40. 40.💡 4 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =

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