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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 296 · 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 green stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-orange (b) blue-violet-red (c) violet-blue-brown (d) violet-blue-red
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) white-yellow-black (b) grey-yellow-brown (c) yellow-grey-black (d) grey-yellow-black
  4. 4.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-red (b) blue-green-black (c) green-blue-brown (d) blue-green-brown
  6. 6.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  10. 10.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-red (b) violet-brown-black (c) brown-violet-brown (d) violet-brown-brown
  12. 12.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  15. 15.🌈 In the resistor colour code, which number does brown stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) violet-yellow-brown (b) violet-yellow-red (c) yellow-violet-brown (d) violet-yellow-black
  17. 17.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-black (b) brown-red-brown (c) brown-brown-red (d) brown-brown-brown
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) green-yellow-red (b) yellow-green-orange (c) yellow-green-brown (d) yellow-green-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) white-yellow-brown (b) yellow-white-red (c) yellow-white-black (d) yellow-white-brown
  29. 29.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does grey stand for?
  32. 32.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) yellow-red-brown (b) green-red-black (c) red-yellow-black (d) yellow-red-black
  36. 36.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) blue-orange-orange (b) orange-blue-yellow (c) orange-blue-orange (d) orange-blue-red
  39. 39.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5
  2. violet-blue-red
  3. grey-yellow-black
  4. 9.5
  5. blue-green-brown
  6. 65
  7. 4
  8. 68000
  9. 500
  10. the one nearest an end
  11. violet-brown-brown
  12. 59
  13. 960
  14. 5 %
  15. 1
  16. violet-yellow-brown
  17. 50
  18. 41
  19. 7
  20. 5
  21. brown-brown-brown
  22. 2
  23. 360
  24. 3
  25. 5.8
  26. 7.2
  27. yellow-green-red
  28. yellow-white-brown
  29. 66
  30. 7500
  31. 8
  32. 4000
  33. 920
  34. 570
  35. yellow-red-black
  36. 8300
  37. 900
  38. orange-blue-orange
  39. 42
  40. 9.6

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