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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 678 · 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) 25 % (b) 0 % (c) 5 % (d) 50 %
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) blue-red-orange (b) blue-red-red (c) red-blue-red (d) blue-red-brown
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) red-grey-yellow (b) grey-red-orange (c) red-grey-red (d) red-grey-orange
  8. 8.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) orange-white-brown (b) white-orange-red (c) white-orange-black (d) white-orange-brown
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 In the resistor colour code, which number does orange stand for?
  14. 14.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) yellow-green-red (b) green-yellow-orange (c) green-yellow-brown (d) green-yellow-red
  17. 17.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-yellow (b) yellow-yellow-red (c) yellow-green-orange (d) yellow-yellow-orange
  21. 21.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-black (b) white-blue-brown (c) brown-blue-black (d) blue-white-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-black (b) orange-black-brown (c) yellow-orange-black (d) yellow-black-black
  26. 26.🌈 In the resistor colour code, which number does violet stand for?
  27. 27.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-red (b) red-grey-orange (c) grey-red-red (d) red-grey-brown
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) red-yellow-brown (b) yellow-red-black (c) red-yellow-black (d) orange-yellow-black
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) orange-red-brown (c) red-orange-red (d) orange-red-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) violet-orange-brown (b) orange-violet-black (c) orange-violet-red (d) orange-violet-brown
  35. 35.🌈 In the resistor colour code, which number does blue stand for?
  36. 36.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. blue-red-red
  4. 8
  5. 5
  6. 7.1
  7. red-grey-orange
  8. 5100
  9. 7000
  10. 8900
  11. white-orange-brown
  12. 1
  13. 3
  14. 92000
  15. 5600
  16. green-yellow-red
  17. 28000
  18. 49
  19. 7100
  20. yellow-yellow-orange
  21. 600
  22. 400
  23. 3.4
  24. white-blue-black
  25. orange-black-black
  26. 7
  27. 760
  28. 32
  29. red-grey-red
  30. red-yellow-black
  31. 0
  32. 34
  33. orange-red-red
  34. orange-violet-brown
  35. 6
  36. 57
  37. 82
  38. 3.2
  39. 8700
  40. 46

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