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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 114 · 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.

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  1. 1.🌈 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
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-orange-red (b) red-red-red (c) red-red-brown (d) red-red-orange
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) brown-violet-black (c) white-violet-black (d) white-violet-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) red-grey-red (b) grey-red-orange (c) red-grey-yellow (d) red-grey-orange
  5. 5.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-red (c) yellow-brown-brown (d) yellow-brown-black
  8. 8.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) white-green-red (b) white-green-yellow (c) green-white-orange (d) white-green-orange
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) red-black-black (c) brown-black-black (d) red-brown-black
  14. 14.🌈 A resistor has the colour bands blue, black, black. 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 brown, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) violet-orange-black (b) orange-violet-brown (c) yellow-violet-black (d) orange-violet-black
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-orange (b) white-green-brown (c) white-green-red (d) green-white-red
  27. 27.🌈 In the resistor colour code, which number does yellow stand for?
  28. 28.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-white-brown (b) grey-grey-brown (c) grey-grey-red (d) grey-grey-black
  35. 35.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) red-grey-brown (b) grey-red-brown (c) grey-red-black (d) grey-red-red
  37. 37.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-orange-black (b) yellow-black-black (c) orange-black-black (d) orange-black-brown
  40. 40.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?

Answer key

  1. violet-blue-orange
  2. red-red-red
  3. white-violet-black
  4. red-grey-orange
  5. 3.3
  6. the one nearest an end
  7. yellow-brown-brown
  8. 72
  9. 30
  10. 5 %
  11. white-green-orange
  12. 8
  13. brown-black-black
  14. 60
  15. 2
  16. 5
  17. 1
  18. 940
  19. 26
  20. 520
  21. 54
  22. 41000
  23. 1
  24. 7
  25. orange-violet-black
  26. white-green-red
  27. 4
  28. 44
  29. 5.8
  30. 67
  31. 7.2
  32. 230
  33. 22
  34. grey-grey-brown
  35. 77
  36. grey-red-brown
  37. 92
  38. 86
  39. orange-black-black
  40. 81

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