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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 232 · 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 green, blue, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-black (b) blue-black-brown (c) violet-blue-black (d) violet-black-black
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-orange-black (b) orange-red-black (c) red-red-black (d) red-red-brown
  5. 5.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) blue-violet-red (b) violet-blue-orange (c) violet-blue-red (d) violet-blue-brown
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  8. 8.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does black stand for?
  11. 11.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-black (b) white-blue-brown (c) blue-white-black (d) brown-blue-black
  14. 14.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-black (b) red-white-brown (c) white-red-black (d) orange-white-black
  16. 16.🌈 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
  17. 17.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-yellow (b) brown-violet-orange (c) violet-brown-orange (d) brown-violet-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-black (b) violet-blue-brown (c) blue-black-brown (d) blue-black-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) blue-orange-red (b) blue-orange-black (c) orange-blue-brown (d) blue-orange-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) orange-brown-brown (c) orange-brown-black (d) brown-orange-brown
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) white-violet-red (b) white-violet-brown (c) white-violet-black (d) violet-white-brown
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-brown (b) orange-brown-black (c) brown-orange-black (d) red-orange-black
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98000 Ω resistor? (a) white-grey-orange (b) white-grey-red (c) grey-white-orange (d) white-grey-yellow
  30. 30.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does blue stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) green-violet-red (b) green-violet-brown (c) green-violet-black (d) violet-green-brown
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) blue-orange-red (b) blue-orange-orange (c) orange-blue-red (d) blue-orange-brown
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. 56
  2. 490
  3. blue-black-black
  4. red-red-black
  5. 7700
  6. violet-blue-red
  7. 5 %
  8. 2.9
  9. 500
  10. 0
  11. 7
  12. 1
  13. white-blue-black
  14. 720
  15. red-white-black
  16. the one nearest an end
  17. 23000
  18. 860
  19. brown-violet-orange
  20. blue-black-brown
  21. blue-orange-brown
  22. orange-brown-brown
  23. 9
  24. white-violet-brown
  25. brown-orange-black
  26. 2
  27. 8
  28. 510
  29. white-grey-orange
  30. 76
  31. 94
  32. 340
  33. 52
  34. 55
  35. 6
  36. green-violet-brown
  37. 7
  38. 1200
  39. blue-orange-red
  40. 5

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