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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 248 · 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 orange, white, orange. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) violet-brown-red (b) violet-brown-orange (c) violet-brown-brown (d) brown-violet-red
  5. 5.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-brown (b) red-violet-red (c) violet-red-orange (d) violet-red-red
  8. 8.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-red (b) violet-blue-orange (c) blue-violet-orange (d) violet-blue-yellow
  10. 10.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) grey-brown-brown (b) brown-grey-red (c) brown-grey-black (d) brown-grey-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) blue-yellow-orange (b) yellow-blue-red (c) yellow-blue-yellow (d) yellow-blue-orange
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-red (b) green-violet-orange (c) green-violet-yellow (d) violet-green-orange
  14. 14.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) white-brown-orange (b) brown-white-red (c) brown-white-orange (d) brown-white-yellow
  26. 26.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) green-red-brown (b) red-green-brown (c) red-green-red (d) red-green-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) red-grey-orange (b) grey-red-orange (c) red-grey-red (d) red-grey-yellow
  29. 29.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does orange stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-blue-red (b) green-green-red (c) green-green-brown (d) green-green-orange
  35. 35.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-red (c) yellow-yellow-black (d) yellow-yellow-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-yellow (b) violet-yellow-orange (c) violet-yellow-red (d) yellow-violet-orange
  40. 40.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 39000
  2. 5 %
  3. the one nearest an end
  4. violet-brown-red
  5. 690
  6. 62000
  7. violet-red-red
  8. 40
  9. violet-blue-orange
  10. 68
  11. brown-grey-brown
  12. yellow-blue-orange
  13. green-violet-orange
  14. 340
  15. 2
  16. 5
  17. 48000
  18. 64000
  19. 53000
  20. 65
  21. 7
  22. 1
  23. 84000
  24. 4
  25. brown-white-orange
  26. 700
  27. red-green-brown
  28. red-grey-orange
  29. 8.7
  30. 20
  31. 2.6
  32. 70000
  33. 3
  34. green-green-red
  35. 29
  36. 15
  37. 62
  38. yellow-yellow-brown
  39. violet-yellow-orange
  40. 2.8

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