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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 449 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-yellow (b) brown-green-orange (c) green-brown-red (d) green-brown-orange
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-red (b) orange-blue-yellow (c) orange-blue-orange (d) blue-orange-orange
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  6. 6.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-orange-brown (b) red-red-red (c) red-red-brown (d) red-red-black
  10. 10.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-orange (b) violet-grey-yellow (c) grey-violet-orange (d) violet-grey-red
  12. 12.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-yellow (b) violet-white-orange (c) white-violet-orange (d) violet-white-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) green-violet-black (b) violet-green-brown (c) green-violet-brown (d) green-violet-red
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) orange-violet-black (b) grey-orange-black (c) violet-orange-brown (d) violet-orange-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) green-blue-yellow (b) green-blue-orange (c) blue-green-orange (d) green-blue-red
  20. 20.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-red (b) white-blue-brown (c) blue-white-brown (d) white-blue-black
  22. 22.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does blue stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) green-blue-orange (b) green-blue-brown (c) green-blue-red (d) blue-green-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-brown (b) orange-red-black (c) red-orange-brown (d) orange-red-red
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) red-brown-brown (d) red-brown-red
  30. 30.🌈 In the resistor colour code, which number does grey stand for?
  31. 31.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-brown (b) green-violet-red (c) violet-green-red (d) violet-green-orange
  33. 33.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does green stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) brown-brown-black (c) red-brown-black (d) brown-brown-brown
  36. 36.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) blue-grey-red (b) blue-grey-yellow (c) blue-grey-orange (d) grey-blue-orange
  38. 38.🌈 In the resistor colour code, which number does orange stand for?
  39. 39.🌈 In the resistor colour code, which number does black stand for?
  40. 40.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. green-brown-orange
  2. 5 %
  3. orange-blue-orange
  4. 7
  5. the one nearest an end
  6. 99
  7. 57
  8. 13000
  9. red-red-brown
  10. 5.1
  11. violet-grey-orange
  12. 35
  13. 2
  14. 54
  15. violet-white-orange
  16. green-violet-brown
  17. 1
  18. violet-orange-black
  19. green-blue-orange
  20. 180
  21. white-blue-brown
  22. 79
  23. 7700
  24. 9
  25. 690
  26. 6
  27. green-blue-red
  28. orange-red-brown
  29. red-brown-red
  30. 8
  31. 590
  32. violet-green-red
  33. 310
  34. 5
  35. brown-brown-black
  36. 830
  37. blue-grey-orange
  38. 3
  39. 0
  40. 3.5

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