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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 77 · 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) 25 % (b) 5 % (c) 50 % (d) 0 %
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  3. 3.🌈 In the resistor colour code, which number does yellow stand for?
  4. 4.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) white-red-black (c) orange-white-black (d) red-white-black
  7. 7.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does red stand for?
  12. 12.🌈 In the resistor colour code, which number does green stand for?
  13. 13.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-orange-orange (b) red-red-orange (c) red-red-red (d) red-red-yellow
  15. 15.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) red-violet-black (b) brown-violet-brown (c) violet-brown-black (d) brown-violet-black
  23. 23.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-brown (b) orange-black-red (c) orange-black-black (d) yellow-orange-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 890 Ω resistor? (a) white-grey-brown (b) grey-white-black (c) grey-white-brown (d) grey-white-red
  27. 27.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-brown (b) violet-brown-black (c) violet-brown-red (d) brown-violet-brown
  32. 32.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) green-yellow-orange (b) yellow-green-yellow (c) yellow-green-red (d) yellow-green-orange
  35. 35.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-yellow (b) yellow-yellow-red (c) yellow-green-orange (d) yellow-yellow-orange
  38. 38.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. 4
  4. 150
  5. 7.3
  6. red-white-black
  7. 31
  8. 3.9
  9. 1
  10. 560
  11. 2
  12. 5
  13. 94
  14. red-red-orange
  15. 36000
  16. 88000
  17. 7
  18. 930
  19. 72000
  20. 550
  21. 220
  22. brown-violet-black
  23. 480
  24. 1.5
  25. orange-black-brown
  26. grey-white-brown
  27. 5500
  28. 99
  29. 89
  30. 25
  31. violet-brown-brown
  32. 600
  33. 20000
  34. yellow-green-orange
  35. 410
  36. 62
  37. yellow-yellow-orange
  38. 14
  39. 43000
  40. 300

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