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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 463 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-orange (b) yellow-brown-brown (c) brown-yellow-red (d) yellow-brown-red
  2. 2.🌈 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
  3. 3.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  5. 5.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does yellow stand for?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-orange (b) violet-blue-brown (c) blue-violet-red (d) violet-blue-red
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) white-green-black (b) blue-white-black (c) green-white-brown (d) green-white-black
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) white-red-black (b) red-white-black (c) orange-white-black (d) red-white-brown
  18. 18.🌈 In the resistor colour code, which number does orange stand for?
  19. 19.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) green-violet-black (b) green-violet-brown (c) violet-green-black (d) blue-violet-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) grey-green-black (c) blue-grey-black (d) green-grey-black
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does brown stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) brown-white-red (b) white-brown-red (c) white-brown-brown (d) white-brown-orange
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-red (b) orange-white-brown (c) white-orange-brown (d) orange-white-black
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-brown (b) brown-orange-black (c) orange-brown-black (d) yellow-brown-black
  33. 33.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-brown (b) green-orange-red (c) orange-green-red (d) orange-green-orange
  36. 36.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?

Answer key

  1. yellow-brown-red
  2. the one nearest an end
  3. 4.6
  4. 5 %
  5. 730
  6. 630
  7. 95
  8. 5.2
  9. 89
  10. 280
  11. 4
  12. 2
  13. violet-blue-red
  14. green-white-black
  15. 0
  16. 800
  17. red-white-black
  18. 3
  19. 71
  20. 25
  21. 5
  22. green-violet-black
  23. green-grey-black
  24. 9
  25. 84
  26. 670
  27. 6
  28. 380
  29. 1
  30. white-brown-red
  31. orange-white-brown
  32. orange-brown-black
  33. 8.6
  34. 17
  35. orange-green-red
  36. 1.4
  37. 7
  38. 260
  39. 820
  40. 22

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