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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 586 · 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 resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  3. 3.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) yellow-blue-orange (b) blue-yellow-red (c) yellow-blue-brown (d) yellow-blue-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-brown (b) blue-white-red (c) blue-white-orange (d) white-blue-red
  9. 9.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) yellow-grey-black (b) orange-grey-brown (c) grey-orange-black (d) orange-grey-black
  12. 12.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-yellow (b) orange-green-orange (c) green-orange-orange (d) green-orange-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) orange-brown-brown (b) brown-orange-red (c) brown-orange-black (d) brown-orange-brown
  16. 16.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-yellow (b) white-brown-red (c) brown-white-orange (d) white-brown-orange
  20. 20.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-orange (b) grey-white-orange (c) grey-grey-red (d) grey-grey-yellow
  25. 25.🌈 In the resistor colour code, which number does yellow stand for?
  26. 26.🌈 In the resistor colour code, which number does violet stand for?
  27. 27.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-red (b) green-orange-brown (c) orange-green-black (d) orange-green-brown
  31. 31.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-black (b) yellow-grey-brown (c) grey-yellow-brown (d) grey-yellow-red
  34. 34.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) grey-yellow-orange (c) yellow-grey-orange (d) grey-yellow-yellow
  37. 37.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-black (b) blue-grey-brown (c) blue-grey-red (d) grey-blue-brown
  39. 39.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. 63
  2. 5 %
  3. 570
  4. 47000
  5. 850
  6. the one nearest an end
  7. yellow-blue-red
  8. blue-white-red
  9. 36
  10. 40
  11. orange-grey-black
  12. 51000
  13. 8
  14. green-orange-orange
  15. brown-orange-brown
  16. 6200
  17. 170
  18. 39
  19. white-brown-orange
  20. 43
  21. 1
  22. 55000
  23. 5
  24. grey-grey-orange
  25. 4
  26. 7
  27. 2.2
  28. 270
  29. 110
  30. orange-green-brown
  31. 26000
  32. 41
  33. grey-yellow-brown
  34. 190
  35. 9
  36. grey-yellow-orange
  37. 1.3
  38. blue-grey-brown
  39. 92000
  40. 2

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