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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 689 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-black-red (b) white-white-orange (c) white-white-brown (d) white-white-red
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) white-blue-black (b) grey-blue-brown (c) blue-grey-black (d) grey-blue-black
  7. 7.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) grey-green-brown (b) green-grey-red (c) green-grey-black (d) green-grey-brown
  9. 9.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) white-grey-brown (c) brown-grey-black (d) white-grey-black
  14. 14.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-orange (b) blue-brown-red (c) brown-blue-brown (d) brown-blue-red
  18. 18.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-yellow (b) yellow-orange-orange (c) orange-black-red (d) orange-black-orange
  21. 21.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-brown-black (b) red-red-black (c) brown-red-black (d) brown-red-brown
  23. 23.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) orange-yellow-brown (b) yellow-orange-brown (c) yellow-orange-red (d) yellow-orange-black
  27. 27.🌈 In the resistor colour code, which number does black stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-orange-brown (b) red-red-brown (c) red-red-black (d) red-red-red
  29. 29.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-brown (c) brown-orange-black (d) orange-brown-black
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) white-yellow-red (b) yellow-white-brown (c) white-yellow-black (d) white-yellow-brown
  40. 40.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 520
  3. 7.2
  4. 83
  5. white-white-red
  6. grey-blue-black
  7. 500
  8. green-grey-brown
  9. the one nearest an end
  10. 3
  11. 30
  12. 35000
  13. white-grey-black
  14. 400
  15. 4.5
  16. 99000
  17. brown-blue-red
  18. 35
  19. 1700
  20. orange-black-orange
  21. 8200
  22. brown-red-black
  23. 100
  24. 1.6
  25. 41
  26. yellow-orange-brown
  27. 0
  28. red-red-brown
  29. 830
  30. 49
  31. 470
  32. 350
  33. 190
  34. brown-orange-black
  35. 9
  36. 73
  37. 2100
  38. 65000
  39. white-yellow-brown
  40. 80

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