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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 227 · 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) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-green-black (d) green-blue-brown
  8. 8.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) green-blue-black (b) yellow-blue-brown (c) yellow-blue-black (d) blue-yellow-black
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) red-orange-red (c) orange-red-brown (d) orange-red-red
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) red-black-red (c) orange-red-red (d) red-black-brown
  16. 16.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does yellow stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) grey-violet-brown (b) violet-black-red (c) violet-black-brown (d) violet-black-black
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) brown-red-black (b) white-red-black (c) white-red-brown (d) red-white-black
  22. 22.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7800 Ω resistor? (a) violet-grey-red (b) violet-grey-orange (c) violet-grey-brown (d) grey-violet-red
  27. 27.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) green-orange-black (b) orange-green-black (c) blue-orange-black (d) green-orange-brown
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does green stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) red-orange-black (c) red-orange-brown (d) orange-red-black
  33. 33.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does black stand for?
  35. 35.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-red-black (b) red-black-black (c) orange-black-black (d) red-black-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) brown-yellow-black (b) yellow-brown-black (c) green-brown-black (d) yellow-brown-brown
  39. 39.🌈 In the resistor colour code, which number does white stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-red-black (c) brown-brown-black (d) brown-brown-brown

Answer key

  1. the one nearest an end
  2. 60000
  3. 33
  4. 63
  5. 13
  6. 81
  7. green-green-brown
  8. 380
  9. yellow-blue-black
  10. 7
  11. 230
  12. orange-red-red
  13. 5 %
  14. 1
  15. red-black-red
  16. 18
  17. 6
  18. 16000
  19. 4
  20. violet-black-brown
  21. white-red-black
  22. 6.8
  23. 8500
  24. 90000
  25. 470
  26. violet-grey-red
  27. 94
  28. green-orange-black
  29. 3
  30. 12
  31. 5
  32. red-orange-black
  33. 230
  34. 0
  35. 57000
  36. 4.2
  37. red-black-black
  38. yellow-brown-black
  39. 9
  40. brown-brown-black

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