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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 213 · 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 brown, brown, brown. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) red-grey-red (b) grey-red-brown (c) grey-red-red (d) grey-red-orange
  3. 3.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) orange-grey-black (b) white-orange-black (c) grey-orange-brown (d) grey-orange-black
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  7. 7.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) red-grey-orange (b) grey-red-yellow (c) grey-red-orange (d) grey-red-red
  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 720 Ω resistor? (a) violet-red-black (b) violet-red-red (c) red-violet-brown (d) violet-red-brown
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) grey-violet-brown (b) violet-grey-black (c) violet-grey-red (d) violet-grey-brown
  16. 16.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) brown-orange-black (b) white-orange-brown (c) orange-white-black (d) white-orange-black
  20. 20.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) yellow-blue-red (b) blue-yellow-brown (c) yellow-blue-brown (d) yellow-blue-black
  27. 27.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  28. 28.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) red-orange-black (c) brown-orange-brown (d) orange-brown-black
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does brown stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-black (b) grey-yellow-brown (c) yellow-grey-brown (d) yellow-grey-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-orange (b) green-red-yellow (c) green-red-red (d) red-green-orange
  36. 36.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does red stand for?
  38. 38.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-yellow (b) green-violet-orange (c) violet-green-orange (d) green-violet-red
  40. 40.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?

Answer key

  1. 110
  2. grey-red-red
  3. 12
  4. 0
  5. grey-orange-black
  6. 5 %
  7. 34000
  8. 2700
  9. 8.1
  10. 840
  11. 5.6
  12. grey-red-orange
  13. 8
  14. violet-red-brown
  15. violet-grey-brown
  16. 310
  17. 6
  18. 1.7
  19. white-orange-black
  20. 64000
  21. 5
  22. 95000
  23. 90
  24. 6
  25. 67
  26. yellow-blue-brown
  27. the one nearest an end
  28. 5.5
  29. brown-orange-black
  30. 9
  31. 91
  32. 210
  33. 1
  34. yellow-grey-brown
  35. green-red-orange
  36. 40
  37. 2
  38. 19
  39. green-violet-orange
  40. 62

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