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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 3 · 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 resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) green-brown-brown (b) brown-green-brown (c) brown-green-red (d) brown-green-black
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-orange (b) white-yellow-red (c) yellow-white-brown (d) yellow-white-red
  5. 5.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-yellow (b) yellow-white-orange (c) white-yellow-orange (d) white-yellow-red
  8. 8.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) blue-orange-brown (b) orange-blue-brown (c) blue-orange-black (d) blue-orange-red
  12. 12.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  13. 13.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  14. 14.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does violet stand for?
  17. 17.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does grey stand for?
  23. 23.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) white-red-orange (b) red-white-orange (c) red-white-red (d) red-white-yellow
  29. 29.🌈 A resistor has the colour bands blue, black, black. 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.🌈 In the resistor colour code, which number does brown stand for?
  32. 32.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-brown (b) white-green-black (c) green-grey-black (d) grey-green-black
  35. 35.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does black stand for?
  37. 37.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-black-brown (b) white-white-brown (c) white-white-red (d) white-white-black
  40. 40.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 14
  2. 5 %
  3. brown-green-brown
  4. yellow-white-red
  5. 710
  6. 5
  7. white-yellow-orange
  8. 55
  9. 9.5
  10. 22
  11. blue-orange-brown
  12. 31
  13. the one nearest an end
  14. 140
  15. 260
  16. 7
  17. 490
  18. 22
  19. 6
  20. 67
  21. 1800
  22. 8
  23. 39
  24. 40000
  25. 21
  26. 3
  27. 8300
  28. red-white-orange
  29. 60
  30. 8.3
  31. 1
  32. 37
  33. 1100
  34. grey-green-black
  35. 290
  36. 0
  37. 980
  38. 640
  39. white-white-brown
  40. 42

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