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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 63 · 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.🌈 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
  2. 2.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  7. 7.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) white-black-black (b) brown-white-black (c) white-black-brown (d) brown-black-black
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-red (b) orange-blue-brown (c) blue-orange-red (d) orange-blue-orange
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) brown-grey-brown (b) grey-brown-black (c) grey-brown-brown (d) grey-brown-red
  17. 17.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) green-violet-brown (b) violet-green-red (c) green-violet-red (d) green-violet-orange
  21. 21.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) red-white-brown (b) white-red-black (c) white-red-red (d) white-red-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-black-black (b) yellow-black-black (c) yellow-black-brown (d) green-yellow-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) grey-white-brown (b) white-grey-black (c) white-grey-red (d) white-grey-brown
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) yellow-red-brown (b) red-yellow-black (c) red-yellow-brown (d) red-yellow-red
  30. 30.🌈 In the resistor colour code, which number does green stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) red-brown-orange (b) brown-black-yellow (c) brown-black-orange (d) brown-black-red
  32. 32.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-brown (b) white-brown-black (c) red-white-black (d) brown-white-black
  35. 35.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-red (b) yellow-orange-red (c) orange-black-brown (d) orange-black-orange
  37. 37.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-orange (b) green-orange-brown (c) green-orange-red (d) orange-green-red
  39. 39.🌈 In the resistor colour code, which number does orange stand for?
  40. 40.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 230
  3. 4.6
  4. 0
  5. 66
  6. 5 %
  7. 66
  8. 91
  9. 4
  10. 1000
  11. 36000
  12. white-black-black
  13. 1
  14. 1.5
  15. orange-blue-red
  16. grey-brown-brown
  17. 83
  18. 94
  19. 8
  20. green-violet-red
  21. 2.7
  22. 130
  23. 9
  24. 990
  25. 3
  26. white-red-brown
  27. yellow-black-black
  28. white-grey-brown
  29. red-yellow-brown
  30. 5
  31. brown-black-orange
  32. 2100
  33. 320
  34. brown-white-black
  35. 6.5
  36. orange-black-red
  37. 9.9
  38. green-orange-red
  39. 3
  40. 17

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