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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 193 · 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.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) green-blue-red (b) green-blue-brown (c) blue-green-red (d) green-blue-orange
  6. 6.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-black (c) violet-yellow-red (d) violet-yellow-brown
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  12. 12.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  13. 13.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-orange-black (b) orange-yellow-black (c) yellow-orange-black (d) orange-orange-brown
  15. 15.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-brown (c) brown-blue-red (d) brown-blue-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) violet-orange-brown (b) orange-violet-brown (c) orange-violet-black (d) orange-violet-red
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-red (b) green-white-orange (c) green-white-yellow (d) white-green-orange
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-red (b) violet-white-orange (c) white-violet-orange (d) white-violet-yellow
  29. 29.🌈 A resistor has the colour bands blue, orange, orange. 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 blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4700 Ω resistor? (a) violet-yellow-red (b) yellow-violet-red (c) yellow-violet-brown (d) yellow-violet-orange
  35. 35.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-red (b) orange-grey-orange (c) grey-orange-orange (d) orange-grey-yellow
  38. 38.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5
  2. 2.3
  3. 750
  4. 6.7
  5. green-blue-red
  6. 5.1
  7. violet-yellow-brown
  8. 0
  9. 5200
  10. 3400
  11. 2200
  12. the one nearest an end
  13. 86
  14. orange-orange-black
  15. 2400
  16. brown-blue-red
  17. orange-violet-brown
  18. 9
  19. 65000
  20. 3.2
  21. 5 %
  22. 1
  23. 810
  24. 96
  25. 80
  26. 3.4
  27. green-white-orange
  28. white-violet-orange
  29. 63000
  30. 1.8
  31. 63
  32. 1.1
  33. 19
  34. yellow-violet-red
  35. 490
  36. 44000
  37. orange-grey-orange
  38. 1300
  39. 6
  40. 2.7

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