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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 103 · 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 220 Ω resistor? (a) red-orange-brown (b) red-red-brown (c) red-red-red (d) red-red-black
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-yellow (c) violet-red-orange (d) violet-red-red
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-green-black (b) yellow-green-brown (c) yellow-green-black (d) green-yellow-black
  5. 5.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does blue stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-black (b) brown-yellow-black (c) yellow-brown-brown (d) green-brown-black
  8. 8.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does yellow stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-brown (b) red-yellow-orange (c) red-yellow-red (d) yellow-red-red
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-violet-black (b) violet-blue-black (c) blue-blue-brown (d) blue-blue-black
  14. 14.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-orange (b) yellow-white-red (c) white-yellow-red (d) yellow-white-brown
  16. 16.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-red (b) orange-violet-brown (c) violet-orange-brown (d) orange-violet-black
  20. 20.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-brown (b) violet-white-red (c) white-violet-red (d) white-violet-orange
  22. 22.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) yellow-white-brown (b) white-yellow-brown (c) yellow-white-red (d) yellow-white-black
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does white stand for?
  29. 29.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does brown stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-red (b) violet-grey-black (c) grey-violet-brown (d) violet-grey-brown
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-yellow (b) grey-white-red (c) grey-white-orange (d) white-grey-orange
  33. 33.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does orange stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-orange (b) red-brown-yellow (c) red-brown-red (d) brown-red-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-black-black (b) blue-black-black (c) blue-black-brown (d) violet-blue-black
  38. 38.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) green-violet-brown (b) blue-violet-black (c) violet-green-black (d) green-violet-black

Answer key

  1. red-red-brown
  2. 5 %
  3. violet-red-orange
  4. yellow-green-black
  5. 570
  6. 6
  7. yellow-brown-black
  8. 700
  9. 1.7
  10. 80
  11. 4
  12. red-yellow-red
  13. blue-blue-black
  14. 56
  15. yellow-white-red
  16. 16
  17. 3300
  18. 5
  19. orange-violet-brown
  20. the one nearest an end
  21. white-violet-red
  22. 1400
  23. 81
  24. yellow-white-brown
  25. 7
  26. 2
  27. 8100
  28. 9
  29. 300
  30. 1
  31. violet-grey-brown
  32. grey-white-orange
  33. 8.3
  34. 73000
  35. 3
  36. red-brown-orange
  37. blue-black-black
  38. 2.7
  39. 530
  40. green-violet-black

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