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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 541 · 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 band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) orange-red-red (b) red-orange-brown (c) red-orange-orange (d) red-orange-red
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-yellow (b) green-violet-red (c) violet-green-orange (d) green-violet-orange
  4. 4.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 In the resistor colour code, which number does grey stand for?
  17. 17.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 850 Ω resistor? (a) grey-green-brown (b) grey-green-black (c) grey-green-red (d) green-grey-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-black (b) brown-brown-brown (c) red-brown-black (d) brown-red-black
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-brown (b) brown-grey-black (c) red-grey-black (d) grey-brown-black
  23. 23.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-yellow (b) green-black-red (c) blue-green-orange (d) green-black-orange
  27. 27.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  28. 28.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) violet-blue-orange (b) blue-violet-red (c) blue-violet-yellow (d) blue-violet-orange
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) yellow-green-red (b) green-yellow-orange (c) green-yellow-red (d) green-yellow-brown
  34. 34.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-red (c) orange-grey-black (d) orange-grey-brown
  36. 36.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. red-orange-red
  3. green-violet-orange
  4. 270
  5. 390
  6. 2200
  7. 73
  8. 2
  9. 550
  10. 380
  11. 0
  12. 810
  13. 930
  14. 130
  15. 5
  16. 8
  17. 9.6
  18. 84000
  19. 6
  20. grey-green-brown
  21. brown-brown-black
  22. brown-grey-black
  23. 28
  24. 80000
  25. 150
  26. green-black-orange
  27. 5 %
  28. 75
  29. 53000
  30. 30000
  31. 98000
  32. blue-violet-orange
  33. green-yellow-red
  34. 86000
  35. orange-grey-brown
  36. 27000
  37. 250
  38. 100
  39. 530
  40. 1600

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