Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 167 · 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.💡 2 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
2. 2.True or false: “a break stops every bulb” is true of a parallel circuit. (a) False (b) True
3. 3.💡 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?
4. 4.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they keep glowing (b) they explode (c) they get dimmer (d) they all go out
5. 5.Which of these is true of a series circuit? (a) one out, the rest glow (b) many paths for current (c) one bulb out, all go out (d) used in house wiring
6. 6.💡 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
7. 7.💡 Why is house wiring done in parallel? (a) each gets full voltage (b) so all go off together (c) to save copper only (d) to make bulbs dim
8. 8.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) many paths for current
9. 9.True or false: “one out, the rest glow” is true of a series circuit. (a) True (b) False
10. 10.💡 5 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
11. 11.True or false: “each gets the full volts” is true of a parallel circuit. (a) True (b) False
12. 12.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) bulbs share the voltage (c) used in house wiring (d) a single current path
13. 13.💡 6 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
14. 14.💡 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?
15. 15.Which of these is true of a parallel circuit? (a) one bulb out, all go out (b) a break stops every bulb (c) own switch for each bulb (d) bulbs share the voltage
16. 16.💡 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 3 is taken out of its holder. How many bulbs glow?
17. 17.💡 4 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
18. 18.💡 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?
19. 19.💡 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
20. 20.💡 6 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
21. 21.💡 2 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
22. 22.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) True (b) False
23. 23.True or false: “a single current path” is true of a parallel circuit. (a) False (b) True
24. 24.💡 2 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
25. 25.💡 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) Yes (b) No
26. 26.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
27. 27.💡 4 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
28. 28.💡 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?
29. 29.💡 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?
30. 30.💡 2 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
31. 31.💡 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?
32. 32.💡 5 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
33. 33.💡 5 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
34. 34.Which of these is true of a parallel circuit? (a) one out, the rest glow (b) bulbs share the voltage (c) one bulb out, all go out (d) a single current path
35. 35.💡 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. How many bulbs glow?
36. 36.💡 6 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
37. 37.💡 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 2 are taken out of their holders. How many bulbs glow?
38. 38.💡 3 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
39. 39.Which of these is true of a series circuit? (a) each gets the full volts (b) many paths for current (c) bulbs share the voltage (d) used in house wiring
40. 40.Which of these is true of a series circuit? (a) a break stops every bulb (b) used in house wiring (c) own switch for each bulb (d) many paths for current

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