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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 96 · 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 violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-red (b) grey-blue-brown (c) blue-grey-black (d) blue-grey-brown
  6. 6.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) white-green-brown (b) white-green-black (c) green-white-black (d) brown-green-black
  8. 8.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) white-blue-black (b) grey-blue-brown (c) blue-grey-black (d) grey-blue-black
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-orange (b) violet-white-red (c) violet-white-yellow (d) white-violet-orange
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) blue-violet-red (b) blue-violet-brown (c) violet-blue-brown (d) blue-violet-black
  20. 20.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-red (b) red-orange-red (c) orange-red-orange (d) orange-red-brown
  22. 22.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-black-black (b) yellow-black-brown (c) green-yellow-black (d) yellow-black-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) red-yellow-black (b) red-yellow-red (c) red-yellow-brown (d) yellow-red-brown
  26. 26.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-brown (b) red-grey-black (c) grey-brown-black (d) brown-grey-black
  29. 29.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  30. 30.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-brown (b) orange-white-red (c) white-orange-orange (d) white-orange-red
  32. 32.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  34. 34.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) green-orange-orange (b) orange-green-red (c) orange-green-yellow (d) orange-green-orange
  39. 39.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 74
  2. 31
  3. 6300
  4. 740
  5. blue-grey-brown
  6. 690
  7. white-green-black
  8. 810
  9. 54
  10. grey-blue-black
  11. violet-white-orange
  12. 4
  13. 91000
  14. 8
  15. 670
  16. 4.4
  17. 2
  18. 4
  19. blue-violet-brown
  20. 650
  21. orange-red-red
  22. 2800
  23. 340
  24. yellow-black-black
  25. red-yellow-brown
  26. 10
  27. 17
  28. brown-grey-black
  29. 47000
  30. 5 %
  31. white-orange-red
  32. 30
  33. the one nearest an end
  34. 83
  35. 73
  36. 66000
  37. 350
  38. orange-green-orange
  39. 73
  40. 47

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