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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 182 · 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) any band (c) the gold band (d) the one nearest an end
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) grey-brown-yellow (b) grey-brown-orange (c) grey-brown-red (d) brown-grey-orange
  4. 4.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) green-orange-brown (b) orange-green-black (c) orange-green-red (d) orange-green-brown
  8. 8.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-brown (c) orange-grey-red (d) orange-grey-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-orange (b) orange-black-red (c) orange-black-yellow (d) yellow-orange-orange
  13. 13.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 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
  18. 18.🌈 In the resistor colour code, which number does blue stand for?
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) orange-white-red (c) white-orange-red (d) white-orange-brown
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) red-violet-black (b) grey-red-black (c) violet-red-black (d) violet-red-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-black (b) white-green-black (c) green-grey-black (d) grey-green-brown
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-brown (b) red-brown-black (c) brown-red-black (d) brown-brown-black
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) white-grey-black (c) brown-grey-black (d) white-grey-brown
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) brown-blue-black (c) white-blue-black (d) white-blue-brown
  35. 35.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) blue-yellow-red (b) yellow-blue-orange (c) yellow-blue-red (d) yellow-blue-brown
  39. 39.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5 %
  3. grey-brown-orange
  4. 21000
  5. 29
  6. 3
  7. orange-green-brown
  8. 54
  9. 7.7
  10. 8
  11. orange-grey-brown
  12. orange-black-orange
  13. 2.7
  14. 5
  15. 5.1
  16. 4
  17. brown-orange-black
  18. 6
  19. 2
  20. 7200
  21. 8600
  22. 75
  23. white-orange-red
  24. 7
  25. 760
  26. 31
  27. 50
  28. 430
  29. 6.5
  30. violet-red-black
  31. grey-green-black
  32. brown-brown-black
  33. white-grey-black
  34. white-blue-black
  35. 240
  36. 5.2
  37. 1
  38. yellow-blue-red
  39. 93
  40. 680

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