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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 568 · 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.

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  1. 1.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  6. 6.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does orange stand for?
  8. 8.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does grey stand for?
  10. 10.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-orange (b) brown-blue-brown (c) blue-brown-red (d) brown-blue-red
  16. 16.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  23. 23.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-black (c) orange-grey-red (d) orange-grey-brown
  25. 25.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-red (b) orange-blue-black (c) blue-orange-brown (d) orange-blue-brown
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-yellow (b) yellow-red-orange (c) red-yellow-red (d) red-yellow-orange
  30. 30.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-red (b) violet-black-yellow (c) grey-violet-orange (d) violet-black-orange
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) yellow-white-black (b) white-yellow-brown (c) brown-yellow-black (d) white-yellow-black
  34. 34.🌈 In the resistor colour code, which number does violet stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-yellow (b) white-blue-red (c) blue-white-orange (d) white-blue-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-black (b) red-orange-brown (c) red-red-red (d) red-red-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) white-green-red (b) white-green-brown (c) green-white-brown (d) white-green-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) blue-brown-black (b) green-brown-black (c) green-brown-brown (d) brown-green-black
  39. 39.🌈 In the resistor colour code, which number does blue stand for?
  40. 40.🌈 In the resistor colour code, which number does brown stand for?

Answer key

  1. 60
  2. 48000
  3. 8.8
  4. 5.4
  5. the one nearest an end
  6. 9.6
  7. 3
  8. 96000
  9. 8
  10. 83
  11. 3700
  12. 2
  13. 93000
  14. 740
  15. brown-blue-red
  16. 7900
  17. 260
  18. 6.2
  19. 730
  20. 28000
  21. 170
  22. 5 %
  23. 4.2
  24. orange-grey-brown
  25. 58000
  26. 73
  27. 95
  28. orange-blue-brown
  29. red-yellow-orange
  30. 56
  31. 2100
  32. violet-black-orange
  33. white-yellow-black
  34. 7
  35. white-blue-orange
  36. red-red-brown
  37. white-green-brown
  38. green-brown-black
  39. 6
  40. 1

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