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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 6 · 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) 50 % (b) 5 % (c) 0 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) brown-white-brown (c) red-white-black (d) white-brown-black
  4. 4.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  7. 7.🌈 In the resistor colour code, which number does black stand for?
  8. 8.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-red (b) grey-violet-brown (c) violet-grey-brown (d) violet-grey-black
  12. 12.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does blue stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) violet-white-brown (b) violet-white-red (c) violet-white-black (d) white-violet-brown
  15. 15.🌈 In the resistor colour code, which number does brown stand for?
  16. 16.🌈 In the resistor colour code, which number does violet stand for?
  17. 17.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-yellow (b) blue-violet-orange (c) blue-blue-orange (d) blue-blue-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) orange-green-red (b) green-orange-orange (c) green-orange-red (d) green-orange-brown
  20. 20.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-orange (b) orange-yellow-red (c) orange-yellow-yellow (d) yellow-orange-orange
  23. 23.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-orange (b) orange-blue-yellow (c) orange-blue-red (d) blue-orange-orange
  25. 25.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) green-grey-black (b) grey-green-black (c) grey-green-brown (d) white-green-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-brown-brown (c) brown-brown-black (d) brown-red-black
  30. 30.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-grey-black (b) grey-grey-red (c) grey-grey-brown (d) grey-white-brown
  32. 32.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) yellow-red-red (b) yellow-red-black (c) red-yellow-brown (d) yellow-red-brown
  38. 38.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) blue-grey-red (b) grey-blue-orange (c) grey-blue-red (d) grey-blue-brown

Answer key

  1. 5 %
  2. 77000
  3. brown-white-black
  4. 20
  5. 500
  6. the one nearest an end
  7. 0
  8. 270
  9. 280
  10. 66
  11. violet-grey-brown
  12. 5.2
  13. 6
  14. violet-white-brown
  15. 1
  16. 7
  17. 19000
  18. blue-blue-orange
  19. green-orange-red
  20. 10
  21. 34
  22. orange-yellow-orange
  23. 3700
  24. orange-blue-orange
  25. 95000
  26. 33
  27. 7.2
  28. grey-green-black
  29. brown-brown-black
  30. 41000
  31. grey-grey-brown
  32. 600
  33. 6.3
  34. 2.5
  35. 530
  36. 5
  37. yellow-red-brown
  38. 46
  39. 4.6
  40. grey-blue-red

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