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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 44 · 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 yellow, brown, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  4. 4.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-black (b) red-grey-black (c) white-red-black (d) grey-red-brown
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  7. 7.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-orange (b) green-orange-red (c) orange-green-red (d) green-orange-brown
  12. 12.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-yellow (b) white-grey-orange (c) grey-white-orange (d) grey-white-red
  14. 14.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-blue-red (b) green-green-brown (c) green-green-red (d) green-green-orange
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) yellow-black-black (c) green-black-black (d) yellow-black-brown
  17. 17.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-brown (b) orange-red-red (c) red-orange-orange (d) red-orange-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) white-green-black (b) green-grey-black (c) grey-green-brown (d) grey-green-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-black (b) red-black-brown (c) orange-red-black (d) orange-black-black
  21. 21.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) grey-brown-black (b) grey-brown-brown (c) brown-grey-brown (d) grey-brown-red
  23. 23.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does violet stand for?
  28. 28.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  29. 29.🌈 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
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-brown (b) red-orange-brown (c) red-red-red (d) red-red-black
  31. 31.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) violet-red-brown (b) red-violet-brown (c) red-violet-black (d) red-violet-red
  34. 34.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-yellow (b) white-blue-orange (c) white-blue-red (d) blue-white-orange
  36. 36.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) blue-red-black (b) red-blue-brown (c) orange-blue-black (d) red-blue-black
  39. 39.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 41
  2. 5.6
  3. the one nearest an end
  4. 310
  5. grey-red-black
  6. 5 %
  7. 970
  8. 9.7
  9. 71000
  10. 4
  11. green-orange-red
  12. 300
  13. grey-white-orange
  14. 86000
  15. green-green-red
  16. yellow-black-black
  17. 55
  18. red-orange-red
  19. grey-green-black
  20. red-black-black
  21. 890
  22. grey-brown-brown
  23. 91
  24. 5
  25. 500
  26. 200
  27. 7
  28. 82000
  29. red-brown-brown
  30. red-red-brown
  31. 340
  32. 9.2
  33. red-violet-brown
  34. 950
  35. white-blue-orange
  36. 58
  37. 8
  38. red-blue-black
  39. 930
  40. 44

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