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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 270 · 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.🌈 In the resistor colour code, which number does violet stand for?
  2. 2.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-red (b) brown-blue-red (c) blue-brown-orange (d) blue-brown-brown
  7. 7.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-brown (b) green-blue-black (c) blue-green-black (d) violet-green-black
  11. 11.🌈 In the resistor colour code, which number does green stand for?
  12. 12.🌈 In the resistor colour code, which number does orange stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) white-violet-red (b) violet-white-red (c) violet-white-brown (d) violet-white-orange
  14. 14.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  16. 16.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  17. 17.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-orange (b) red-white-orange (c) white-red-red (d) white-red-yellow
  20. 20.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) yellow-grey-red (b) yellow-grey-yellow (c) yellow-grey-orange (d) grey-yellow-orange
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69 Ω resistor? (a) blue-white-brown (b) violet-white-black (c) white-blue-black (d) blue-white-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) violet-white-brown (b) white-violet-red (c) white-violet-black (d) white-violet-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) orange-brown-red (b) brown-orange-red (c) brown-orange-brown (d) brown-orange-orange
  25. 25.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) orange-white-black (c) red-white-black (d) white-red-black
  27. 27.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-red (b) blue-red-red (c) red-blue-brown (d) red-blue-orange
  33. 33.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) red-black-orange (c) red-black-brown (d) orange-red-red

Answer key

  1. 7
  2. 160
  3. 9000
  4. 9
  5. 0
  6. blue-brown-red
  7. 9500
  8. 75
  9. 2
  10. blue-green-black
  11. 5
  12. 3
  13. violet-white-red
  14. 9
  15. 5 %
  16. the one nearest an end
  17. 920
  18. 1800
  19. white-red-orange
  20. 12000
  21. yellow-grey-orange
  22. blue-white-black
  23. white-violet-brown
  24. brown-orange-red
  25. 550
  26. red-white-black
  27. 3500
  28. 600
  29. 8100
  30. 1.8
  31. 1.2
  32. red-blue-red
  33. 3600
  34. 52
  35. 6.9
  36. 2.6
  37. 54000
  38. 66
  39. 650
  40. red-black-red

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