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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 58 · 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.🌈 In the resistor colour code, which number does violet stand for?
  2. 2.🌈 In the resistor colour code, which number does blue stand for?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-orange (b) green-brown-yellow (c) brown-green-orange (d) green-brown-red
  9. 9.🌈 A resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-orange (b) brown-white-orange (c) white-black-yellow (d) white-black-red
  13. 13.🌈 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
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 620 Ω resistor? (a) blue-red-brown (b) blue-red-red (c) red-blue-brown (d) blue-red-black
  15. 15.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) grey-green-black (b) blue-grey-black (c) green-grey-black (d) green-grey-brown
  18. 18.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-brown (b) brown-grey-red (c) grey-brown-red (d) brown-grey-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-red (b) yellow-yellow-brown (c) yellow-yellow-orange (d) yellow-green-red
  22. 22.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85000 Ω resistor? (a) grey-green-red (b) grey-green-yellow (c) grey-green-orange (d) green-grey-orange
  26. 26.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-black (b) white-grey-red (c) white-grey-brown (d) grey-white-brown
  35. 35.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) orange-blue-orange (c) blue-orange-orange (d) orange-blue-red
  37. 37.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-blue-orange (b) blue-blue-red (c) blue-blue-brown (d) blue-violet-red
  40. 40.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?

Answer key

  1. 7
  2. 6
  3. 3
  4. 69000
  5. 1
  6. 2
  7. 1600
  8. green-brown-orange
  9. 53000
  10. 650
  11. 5 %
  12. white-black-orange
  13. the one nearest an end
  14. blue-red-brown
  15. 27
  16. 54000
  17. green-grey-black
  18. 30
  19. 51
  20. brown-grey-red
  21. yellow-yellow-red
  22. 240
  23. 72000
  24. 8
  25. grey-green-orange
  26. 63000
  27. 64
  28. 280
  29. 6.3
  30. 21
  31. 640
  32. 50
  33. 190
  34. white-grey-brown
  35. 24000
  36. orange-blue-orange
  37. 79
  38. 51
  39. blue-blue-red
  40. 120

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