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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 62 · 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 gold band (c) the one nearest an end (d) the widest gap
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) yellow-blue-red (b) blue-yellow-orange (c) blue-yellow-red (d) blue-yellow-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) red-grey-black (b) brown-grey-black (c) grey-brown-black (d) brown-grey-brown
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-orange (b) white-yellow-red (c) white-yellow-brown (d) yellow-white-red
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-black (b) white-orange-brown (c) orange-white-red (d) orange-white-brown
  18. 18.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) yellow-orange-red (b) yellow-orange-brown (c) yellow-orange-orange (d) orange-yellow-red
  22. 22.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) brown-green-black (b) green-brown-black (c) red-green-black (d) brown-green-brown
  25. 25.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-black (b) green-orange-black (c) orange-green-brown (d) yellow-green-black
  29. 29.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-red (b) green-black-brown (c) green-black-black (d) blue-green-brown
  34. 34.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98000 Ω resistor? (a) white-grey-orange (b) white-grey-yellow (c) white-grey-red (d) grey-white-orange
  36. 36.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) white-green-red (b) white-green-black (c) white-green-brown (d) green-white-brown

Answer key

  1. 5 %
  2. the one nearest an end
  3. blue-yellow-red
  4. brown-grey-black
  5. 9
  6. 7.7
  7. white-yellow-red
  8. 6
  9. 340
  10. 5.2
  11. 3.1
  12. 720
  13. 0
  14. 1
  15. 8.9
  16. 81
  17. orange-white-brown
  18. 20
  19. 3
  20. 18
  21. yellow-orange-red
  22. 97000
  23. 5.5
  24. brown-green-black
  25. 98
  26. 9.4
  27. 6200
  28. orange-green-black
  29. 93
  30. 46
  31. 11
  32. 77000
  33. green-black-brown
  34. 570
  35. white-grey-orange
  36. 22000
  37. 5.6
  38. 880
  39. 560
  40. white-green-brown

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