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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 244 · 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) 25 % (b) 50 % (c) 5 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-orange (b) grey-orange-orange (c) orange-grey-yellow (d) orange-grey-red
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) green-yellow-red (b) yellow-black-orange (c) yellow-black-red (d) yellow-black-brown
  6. 6.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-red (b) brown-brown-black (c) brown-brown-brown (d) brown-red-brown
  9. 9.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) grey-brown-yellow (b) grey-brown-red (c) grey-brown-orange (d) brown-grey-orange
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-orange (b) violet-brown-orange (c) brown-violet-red (d) brown-violet-yellow
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) orange-brown-orange (b) brown-orange-red (c) brown-orange-orange (d) brown-orange-yellow
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-brown (b) orange-white-black (c) white-orange-black (d) brown-orange-black
  16. 16.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-red (b) orange-red-yellow (c) red-orange-orange (d) orange-red-orange
  19. 19.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does green stand for?
  21. 21.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-red (b) brown-white-black (c) brown-white-brown (d) white-brown-brown
  23. 23.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does yellow stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-red (b) green-green-orange (c) green-green-brown (d) green-blue-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) yellow-white-red (b) white-yellow-orange (c) white-yellow-brown (d) white-yellow-red
  28. 28.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) red-blue-black (b) blue-red-black (c) violet-red-black (d) blue-red-brown
  31. 31.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  36. 36.🌈 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
  37. 37.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-black (b) brown-red-brown (c) red-brown-brown (d) red-brown-red
  39. 39.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 9.5
  3. orange-grey-orange
  4. 1
  5. yellow-black-red
  6. 8.1
  7. the one nearest an end
  8. brown-brown-brown
  9. 30
  10. grey-brown-orange
  11. brown-violet-orange
  12. 6
  13. brown-orange-orange
  14. 3
  15. white-orange-black
  16. 81
  17. 7
  18. orange-red-orange
  19. 31000
  20. 5
  21. 79000
  22. brown-white-brown
  23. 770
  24. 5600
  25. 4
  26. green-green-red
  27. white-yellow-red
  28. 9
  29. 520
  30. blue-red-black
  31. 7100
  32. 97
  33. 850
  34. 79
  35. 810
  36. red-red-black
  37. 980
  38. red-brown-brown
  39. 2
  40. 71000

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