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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 741 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-red (b) violet-brown-orange (c) brown-violet-yellow (d) brown-violet-orange
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) white-orange-brown (b) orange-white-black (c) orange-white-red (d) orange-white-brown
  5. 5.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-orange (b) green-white-red (c) white-green-orange (d) green-white-yellow
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-black (b) white-green-black (c) green-grey-black (d) grey-green-brown
  10. 10.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-red (b) orange-yellow-orange (c) yellow-orange-orange (d) orange-yellow-yellow
  17. 17.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does green stand for?
  23. 23.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-yellow (b) brown-red-orange (c) red-brown-red (d) red-brown-orange
  25. 25.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-brown (b) yellow-black-black (c) green-black-black (d) green-yellow-black
  32. 32.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-green-black (b) green-green-brown (c) green-blue-black (d) blue-green-black
  39. 39.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?

Answer key

  1. brown-violet-orange
  2. 5 %
  3. the one nearest an end
  4. orange-white-brown
  5. 930
  6. 61000
  7. 7
  8. green-white-orange
  9. grey-green-black
  10. 5.7
  11. 1
  12. 2
  13. 30
  14. 210
  15. 48000
  16. orange-yellow-orange
  17. 50
  18. 0
  19. 9.9
  20. 630
  21. 2.6
  22. 5
  23. 19000
  24. red-brown-orange
  25. 12000
  26. 25
  27. 130
  28. 62000
  29. 4400
  30. 9
  31. yellow-black-black
  32. 1.3
  33. 8
  34. 490
  35. 1.7
  36. 36
  37. 720
  38. green-green-black
  39. 840
  40. 64000

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