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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 402 · 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 gold band (b) the widest gap (c) any band (d) the one nearest an end
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 In the resistor colour code, which number does blue stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-brown (b) red-grey-brown (c) grey-red-black (d) grey-red-red
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) yellow-violet-black (b) orange-violet-brown (c) orange-violet-black (d) violet-orange-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) blue-brown-black (b) green-brown-brown (c) green-brown-black (d) brown-green-black
  8. 8.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does green stand for?
  12. 12.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) red-brown-orange (b) brown-black-orange (c) brown-black-yellow (d) brown-black-red
  15. 15.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-black (b) green-blue-red (c) blue-green-brown (d) green-blue-brown
  18. 18.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) green-red-orange (b) green-red-brown (c) green-red-red (d) red-green-red
  20. 20.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) violet-white-brown (b) violet-white-red (c) white-violet-brown (d) violet-white-black
  22. 22.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-brown (b) violet-green-black (c) green-blue-black (d) blue-green-black
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-orange (b) brown-green-red (c) green-brown-red (d) green-brown-brown
  26. 26.🌈 In the resistor colour code, which number does brown stand for?
  27. 27.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) orange-grey-black (b) grey-red-black (c) red-grey-black (d) red-grey-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) blue-violet-red (b) violet-blue-brown (c) violet-blue-red (d) violet-blue-orange
  39. 39.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 2
  3. 3
  4. 6
  5. grey-red-brown
  6. orange-violet-black
  7. green-brown-black
  8. 810
  9. 12
  10. 9300
  11. 5
  12. 79
  13. 5 %
  14. brown-black-orange
  15. 360
  16. 88000
  17. green-blue-brown
  18. 750
  19. green-red-red
  20. 25000
  21. violet-white-brown
  22. 40
  23. blue-green-black
  24. 8
  25. green-brown-red
  26. 1
  27. 55
  28. 11000
  29. 7
  30. 130
  31. 430
  32. 80
  33. 9
  34. 5900
  35. 590
  36. 330
  37. red-grey-black
  38. violet-blue-red
  39. 52
  40. 63

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