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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 736 · 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 610 Ω resistor? (a) blue-brown-brown (b) brown-blue-brown (c) blue-brown-red (d) blue-brown-black
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) grey-white-black (b) white-violet-black (c) violet-white-brown (d) violet-white-black
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-orange (b) yellow-grey-orange (c) grey-yellow-yellow (d) grey-yellow-red
  7. 7.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  13. 13.🌈 In the resistor colour code, which number does orange stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-black (b) grey-red-red (c) grey-red-brown (d) red-grey-brown
  15. 15.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) white-red-black (c) red-white-black (d) orange-white-black
  19. 19.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) violet-red-brown (c) red-violet-brown (d) red-violet-black
  24. 24.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-black (b) blue-black-brown (c) violet-black-black (d) violet-blue-black
  26. 26.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) violet-brown-brown (b) violet-brown-orange (c) violet-brown-red (d) brown-violet-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) grey-black-brown (b) grey-black-black (c) white-black-black (d) white-grey-black
  31. 31.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 850 Ω resistor? (a) green-grey-brown (b) grey-green-red (c) grey-green-black (d) grey-green-brown
  33. 33.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does blue stand for?

Answer key

  1. blue-brown-brown
  2. 4
  3. violet-white-black
  4. 9
  5. 5100
  6. grey-yellow-orange
  7. 360
  8. 5
  9. 480
  10. 8
  11. 72
  12. 5 %
  13. 3
  14. grey-red-brown
  15. 21000
  16. 0
  17. 350
  18. red-white-black
  19. 410
  20. 770
  21. 5300
  22. 200
  23. red-violet-brown
  24. 81000
  25. blue-black-black
  26. 65
  27. 12
  28. 2
  29. violet-brown-red
  30. grey-black-black
  31. 500
  32. grey-green-brown
  33. 110
  34. 9
  35. 80
  36. 810
  37. 7.9
  38. 8.2
  39. 46
  40. 6

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