Electronics Worksheet: Parallel Circuits

Electronics lesson 9: Parallel circuits · Set 67 · 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: “own switch for each bulb” is true of a parallel circuit. (a) False (b) True
2. 2.True or false: “one out, the rest glow” is true of a series circuit. (a) True (b) False
3. 3.Which of these is true of a series circuit? (a) used in house wiring (b) own switch for each bulb (c) each gets the full volts (d) a break stops every bulb
4. 4.💡 2 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
5. 5.💡 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?
6. 6.Which of these is true of a parallel circuit? (a) bulbs share the voltage (b) one bulb out, all go out (c) many paths for current (d) a break stops every bulb
7. 7.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
8. 8.💡 Why is house wiring done in parallel? (a) to make bulbs dim (b) so all go off together (c) each gets full voltage (d) to save copper only
9. 9.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they get dimmer (b) they all go out (c) they explode (d) they keep glowing
10. 10.💡 3 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
11. 11.True or false: “a break stops every bulb” is true of a series circuit. (a) True (b) False
12. 12.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 3 of the switches are OFF and the rest are ON. How many bulbs glow?
13. 13.💡 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?
14. 14.💡 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?
15. 15.💡 6 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
16. 16.Which of these is true of a series circuit? (a) one out, the rest glow (b) bulbs share the voltage (c) many paths for current (d) each gets the full volts
17. 17.True or false: “each gets the full volts” is true of a series circuit. (a) False (b) True
18. 18.💡 5 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
19. 19.💡 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?
20. 20.Which of these is true of a series circuit? (a) one bulb out, all go out (b) each gets the full volts (c) many paths for current (d) one out, the rest glow
21. 21.💡 3 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
22. 22.💡 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?
23. 23.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) bulbs share the voltage (c) one bulb out, all go out (d) own switch for each bulb
24. 24.💡 2 identical bulbs are in parallel and each one takes 1 A. What total current (in amperes) comes from the battery? =
25. 25.💡 2 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
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. Bulbs 1 and 2 are taken out of their holders. Does bulb 3 glow? (a) No (b) Yes
27. 27.True or false: “one out, the rest glow” is true of a parallel circuit. (a) False (b) True
28. 28.Which of these is true of a parallel circuit? (a) one out, the rest glow (b) a single current path (c) bulbs share the voltage (d) a break stops every bulb
29. 29.💡 3 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
30. 30.💡 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?
31. 31.💡 3 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
32. 32.💡 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. Bulbs 1 and 4 are taken out of their holders. How many bulbs glow?
33. 33.💡 2 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
34. 34.💡 4 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
35. 35.True or false: “used in house wiring” is true of a parallel circuit. (a) True (b) False
36. 36.💡 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 1 is taken out of its holder. How many bulbs glow?
37. 37.True or false: “one bulb out, all go out” is true of a series circuit. (a) False (b) True
38. 38.True or false: “a single current path” is true of a parallel circuit. (a) False (b) True
39. 39.💡 4 identical bulbs are in parallel and each one takes 0.2 A. What total current (in amperes) comes from the battery? =
40. 40.True or false: “many paths for current” is true of a series circuit. (a) False (b) True

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