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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 971 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does grey stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-yellow (b) violet-blue-orange (c) violet-blue-red (d) blue-violet-orange
  4. 4.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) brown-red-black (d) red-red-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-red (b) grey-black-brown (c) white-grey-brown (d) grey-black-black
  9. 9.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  13. 13.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-red (b) brown-orange-black (c) orange-brown-brown (d) brown-orange-brown
  16. 16.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does green stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) violet-white-black (b) violet-white-red (c) white-violet-brown (d) violet-white-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-brown (b) brown-green-black (c) blue-brown-black (d) green-brown-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-black (b) orange-white-black (c) brown-orange-black (d) white-orange-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) violet-white-brown (b) white-violet-black (c) white-violet-brown (d) white-violet-red
  27. 27.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) blue-brown-red (b) brown-blue-brown (c) blue-brown-black (d) blue-brown-brown
  30. 30.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) orange-black-brown (c) yellow-orange-brown (d) orange-black-red
  32. 32.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does brown stand for?
  36. 36.🌈 In the resistor colour code, which number does violet stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-red (b) green-violet-orange (c) violet-green-orange (d) green-violet-yellow
  38. 38.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-black-black (b) yellow-black-black (c) green-yellow-black (d) yellow-black-brown
  40. 40.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 85
  2. 8
  3. violet-blue-orange
  4. 43
  5. 340
  6. 1500
  7. brown-red-black
  8. grey-black-brown
  9. 75
  10. 5 %
  11. 0
  12. the one nearest an end
  13. 1000
  14. 8.7
  15. brown-orange-brown
  16. 7
  17. 370
  18. 11
  19. 53
  20. 260
  21. 78
  22. 5
  23. violet-white-brown
  24. green-brown-black
  25. white-orange-black
  26. white-violet-brown
  27. 46
  28. 2
  29. blue-brown-brown
  30. 35000
  31. orange-black-brown
  32. 2900
  33. 6.6
  34. 880
  35. 1
  36. 7
  37. green-violet-orange
  38. 320
  39. yellow-black-black
  40. 580

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