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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 488 · 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 one nearest an end (b) any band (c) the gold band (d) the widest gap
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-orange (b) yellow-orange-orange (c) orange-black-red (d) orange-black-yellow
  3. 3.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) brown-grey-brown (b) grey-brown-brown (c) grey-brown-red (d) grey-brown-black
  5. 5.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  9. 9.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) yellow-white-red (b) white-yellow-orange (c) white-yellow-red (d) white-yellow-brown
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-red (c) yellow-orange-yellow (d) yellow-orange-orange
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-red (b) grey-white-red (c) white-grey-orange (d) white-grey-brown
  23. 23.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-orange (b) yellow-black-red (c) green-yellow-red (d) yellow-black-brown
  25. 25.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-black (b) yellow-brown-brown (c) brown-yellow-black (d) green-brown-black
  32. 32.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) yellow-orange-red (b) orange-black-brown (c) orange-black-orange (d) orange-black-red
  36. 36.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-yellow (b) blue-green-orange (c) green-black-orange (d) green-black-red
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) blue-grey-black (b) grey-blue-black (c) violet-grey-black (d) blue-grey-brown
  39. 39.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. orange-black-orange
  3. 2700
  4. grey-brown-brown
  5. 19000
  6. 9.5
  7. 8.5
  8. 5 %
  9. 17000
  10. 500
  11. 950
  12. white-yellow-red
  13. yellow-orange-orange
  14. 0
  15. 37
  16. 96000
  17. 2
  18. 85
  19. 53
  20. 92000
  21. 6
  22. white-grey-red
  23. 23
  24. yellow-black-red
  25. 6100
  26. 390
  27. 17
  28. 750
  29. 89
  30. 81
  31. yellow-brown-black
  32. 970
  33. 9
  34. 3.4
  35. orange-black-red
  36. 290
  37. green-black-orange
  38. blue-grey-black
  39. 1700
  40. 88

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