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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 322 · 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) 0 % (b) 25 % (c) 5 % (d) 50 %
  2. 2.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does yellow stand for?
  4. 4.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-red (b) grey-yellow-brown (c) yellow-grey-brown (d) yellow-grey-black
  6. 6.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  7. 7.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  8. 8.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-red (b) red-black-orange (c) orange-red-orange (d) red-black-yellow
  12. 12.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-orange (b) yellow-red-red (c) red-yellow-brown (d) red-yellow-red
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) red-white-red (b) white-red-orange (c) white-red-red (d) white-red-brown
  15. 15.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 In the resistor colour code, which number does orange stand for?
  19. 19.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) brown-green-red (b) green-brown-brown (c) green-brown-orange (d) green-brown-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-brown (b) blue-white-orange (c) white-blue-red (d) blue-white-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) grey-violet-brown (b) grey-violet-red (c) violet-grey-brown (d) grey-violet-black
  24. 24.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-brown (b) green-black-orange (c) green-black-red (d) blue-green-red
  28. 28.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-black (b) red-white-brown (c) white-red-brown (d) red-white-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) orange-brown-brown (c) orange-brown-black (d) brown-orange-brown
  31. 31.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-yellow (b) blue-violet-orange (c) violet-blue-orange (d) violet-blue-red
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-black (b) white-blue-brown (c) blue-white-red (d) blue-white-brown
  34. 34.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does white stand for?
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 150
  3. 4
  4. 83000
  5. yellow-grey-brown
  6. 22
  7. the one nearest an end
  8. 7.5
  9. 1000
  10. 79
  11. red-black-orange
  12. 8.7
  13. red-yellow-red
  14. white-red-red
  15. 39000
  16. 70
  17. 2
  18. 3
  19. 190
  20. 800
  21. green-brown-red
  22. blue-white-red
  23. grey-violet-brown
  24. 3.5
  25. 0
  26. 17
  27. green-black-red
  28. 31
  29. red-white-brown
  30. orange-brown-brown
  31. 62
  32. violet-blue-orange
  33. blue-white-brown
  34. 43
  35. 37
  36. 9
  37. 7
  38. 94
  39. 910
  40. 400

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