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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 314 · 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) the one nearest an end (c) the gold band (d) any band
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) white-brown-red (b) white-brown-black (c) brown-white-brown (d) white-brown-brown
  4. 4.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-red (c) green-blue-black (d) green-blue-brown
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) red-green-yellow (b) green-red-orange (c) red-green-orange (d) red-green-red
  9. 9.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-red-red (b) brown-brown-brown (c) brown-brown-orange (d) brown-brown-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-red (b) green-white-brown (c) green-white-black (d) white-green-brown
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-orange (c) brown-black-brown (d) brown-black-red
  17. 17.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does orange stand for?
  21. 21.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-black (b) brown-brown-black (c) brown-white-black (d) white-brown-brown
  24. 24.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, white, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-brown (c) violet-orange-red (d) violet-orange-orange
  32. 32.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) orange-yellow-brown (b) yellow-orange-red (c) yellow-orange-brown (d) yellow-orange-black
  40. 40.🌈 In the resistor colour code, which number does yellow stand for?

Answer key

  1. the one nearest an end
  2. 2
  3. white-brown-brown
  4. 68
  5. 5.1
  6. 5 %
  7. green-blue-brown
  8. red-green-orange
  9. 8.1
  10. 39000
  11. 52
  12. 770
  13. 0
  14. brown-brown-red
  15. green-white-brown
  16. brown-black-red
  17. 530
  18. 4.9
  19. 34
  20. 3
  21. 9.6
  22. 3.6
  23. white-brown-black
  24. 36
  25. 48
  26. 2.4
  27. 8
  28. 5.2
  29. 490
  30. 8.3
  31. violet-orange-red
  32. 1
  33. 9000
  34. 4100
  35. 830
  36. 70
  37. 60000
  38. 6
  39. yellow-orange-brown
  40. 4

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