← Resistors in series and parallel lesson New set →

Electronics Worksheet: Series and Parallel Resistors

Electronics lesson 14: Resistors in series and parallel · Set 713 · 40 questions
TalentJR

Remember (Add in a row, share side by side): Series: R total = R1 + R2 + R3 … Parallel, equal resistors: R total = R ÷ number of resistors (two equal → half). Then I = V ÷ R total. Example: 6 V across 4 Ω + 8 Ω = 12 Ω → 0.5 A.

NameDateTime takenScore ___ / 40
  1. 1.🧮 Resistors of 220 Ω, 330 Ω and 10 Ω are joined in series. What is the total resistance (in ohms)?
  2. 2.🧮 A 2 V battery is joined to 12 Ω and 8 Ω resistors in series. What current flows (in amperes)? =
  3. 3.🧮 Resistors of 20 Ω and 10 Ω are joined in series. What is the total resistance (in ohms)?
  4. 4.🧮 A 33 Ω resistor is joined in series with two equal 200 Ω resistors that are in parallel with each other. What is the total resistance (in ohms)?
  5. 5.🧮 Resistors of 220 Ω and 22 Ω are joined in series. What is the total resistance (in ohms)?
  6. 6.🧮 Adding another resistor in series makes the total resistance … (a) zero (b) smaller (c) bigger (d) stay the same
  7. 7.🧮 Three equal 75 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  8. 8.🧮 Resistors of 22 Ω, 47 Ω and 50 Ω are joined in series. What is the total resistance (in ohms)?
  9. 9.🧮 Resistors of 22 Ω and 22 Ω are joined in series. What is the total resistance (in ohms)?
  10. 10.🧮 A 1.4 V battery is joined to 10 Ω and 4 Ω resistors in series. What current flows (in amperes)? =
  11. 11.🧮 Resistors of 10 Ω and 330 Ω are joined in series. What is the total resistance (in ohms)?
  12. 12.🧮 Two equal 330 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  13. 13.🧮 Resistors of 20 Ω, 220 Ω and 33 Ω are joined in series. What is the total resistance (in ohms)?
  14. 14.🧮 A 50 Ω resistor is joined in series with two equal 1000 Ω resistors that are in parallel with each other. What is the total resistance (in ohms)?
  15. 15.🧮 Two resistors in parallel give a total that is … (a) always zero (b) their sum (c) more than either one (d) less than either one
  16. 16.🧮 Five equal 500 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  17. 17.🧮 Two equal 470 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  18. 18.🧮 Five equal 250 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  19. 19.🧮 A 100 Ω resistor is joined in series with two equal 40 Ω resistors that are in parallel with each other. What is the total resistance (in ohms)?
  20. 20.🧮 A 3.75 V battery is joined to 5 Ω and 10 Ω resistors in series. What current flows (in amperes)? =
  21. 21.🧮 A 2.8 V battery is joined to 4 Ω and 10 Ω resistors in series. What current flows (in amperes)? =
  22. 22.🧮 A 14 V battery is joined to 4 Ω and 10 Ω resistors in series. What current flows (in amperes)? =
  23. 23.🧮 Resistors of 470 Ω, 10 Ω, 100 Ω and 10 Ω are joined in series. What is the total resistance (in ohms)?
  24. 24.🧮 Four equal 400 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  25. 25.🧮 Two equal 20 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  26. 26.🧮 Resistors of 20 Ω and 150 Ω are joined in series. What is the total resistance (in ohms)?
  27. 27.🧮 Resistors of 220 Ω, 20 Ω, 220 Ω and 47 Ω are joined in series. What is the total resistance (in ohms)?
  28. 28.🧮 An 11 V battery is joined to 8 Ω and 3 Ω resistors in series. What current flows (in amperes)? =
  29. 29.🧮 Resistors of 68 Ω, 330 Ω and 20 Ω are joined in series. What is the total resistance (in ohms)?
  30. 30.🧮 Five equal 100 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  31. 31.🧮 Two equal 10 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  32. 32.🧮 A 4.5 V battery is joined to 6 Ω and 3 Ω resistors in series. What current flows (in amperes)? =
  33. 33.🧮 Four equal 100 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  34. 34.🧮 Three equal 300 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  35. 35.🧮 A 22 Ω resistor is joined in series with two equal 200 Ω resistors that are in parallel with each other. What is the total resistance (in ohms)?
  36. 36.🧮 Resistors of 47 Ω, 150 Ω and 47 Ω are joined in series. What is the total resistance (in ohms)?
  37. 37.🧮 Resistors of 150 Ω, 470 Ω and 10 Ω are joined in series. What is the total resistance (in ohms)?
  38. 38.🧮 A 9 V battery is joined to 5 Ω and 4 Ω resistors in series. What current flows (in amperes)? =
  39. 39.🧮 Three equal 150 Ω resistors are joined in parallel. What is the total resistance (in ohms)?
  40. 40.🧮 Resistors of 330 Ω, 220 Ω, 470 Ω and 22 Ω are joined in series. What is the total resistance (in ohms)?

Answer key

  1. 560
  2. 0.1
  3. 30
  4. 133
  5. 242
  6. bigger
  7. 25
  8. 119
  9. 44
  10. 0.1
  11. 340
  12. 165
  13. 273
  14. 550
  15. less than either one
  16. 100
  17. 235
  18. 50
  19. 120
  20. 0.25
  21. 0.2
  22. 1
  23. 590
  24. 100
  25. 10
  26. 170
  27. 507
  28. 1
  29. 418
  30. 20
  31. 5
  32. 0.5
  33. 25
  34. 100
  35. 122
  36. 244
  37. 630
  38. 1
  39. 50
  40. 1042

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