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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 250 · 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 gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  2. 2.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) yellow-grey-orange (b) grey-yellow-yellow (c) grey-yellow-red (d) grey-yellow-orange
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-red (b) white-green-brown (c) green-white-red (d) white-green-orange
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) blue-brown-black (b) blue-brown-red (c) blue-brown-brown (d) brown-blue-brown
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-orange (b) green-blue-orange (c) green-green-red (d) green-green-yellow
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) yellow-orange-red (b) orange-black-brown (c) orange-black-red (d) orange-black-orange
  12. 12.🌈 In the resistor colour code, which number does green stand for?
  13. 13.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does yellow stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) white-brown-brown (b) brown-white-red (c) brown-white-brown (d) brown-white-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) orange-green-black (b) green-orange-black (c) green-orange-brown (d) blue-orange-black
  20. 20.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-black (c) yellow-brown-brown (d) yellow-brown-red
  25. 25.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-black-red (b) white-white-brown (c) white-white-orange (d) white-white-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-yellow (b) yellow-brown-orange (c) yellow-brown-red (d) brown-yellow-orange
  29. 29.🌈 In the resistor colour code, which number does black stand for?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-brown (b) white-grey-black (c) grey-white-brown (d) white-grey-red
  32. 32.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) orange-red-orange (b) red-orange-orange (c) red-orange-yellow (d) red-orange-red
  36. 36.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) brown-yellow-red (b) brown-yellow-orange (c) yellow-brown-orange (d) brown-yellow-yellow
  39. 39.🌈 In the resistor colour code, which number does white stand for?
  40. 40.🌈 In the resistor colour code, which number does grey stand for?

Answer key

  1. 5 %
  2. 28
  3. grey-yellow-orange
  4. white-green-red
  5. the one nearest an end
  6. blue-brown-brown
  7. 1
  8. 50
  9. 770
  10. green-green-orange
  11. orange-black-red
  12. 5
  13. 93000
  14. 6500
  15. 40000
  16. 5.9
  17. 4
  18. brown-white-brown
  19. green-orange-black
  20. 92
  21. 88000
  22. 4700
  23. 48
  24. yellow-brown-brown
  25. 2.7
  26. 62
  27. white-white-red
  28. yellow-brown-orange
  29. 0
  30. 2
  31. white-grey-brown
  32. 3000
  33. 10
  34. 350
  35. red-orange-orange
  36. 5600
  37. 7
  38. brown-yellow-orange
  39. 9
  40. 8

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