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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 374 · 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 an 820 Ω resistor? (a) red-grey-brown (b) grey-red-black (c) grey-red-red (d) grey-red-brown
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-red (b) grey-orange-brown (c) orange-grey-brown (d) orange-grey-black
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-yellow (b) red-red-red (c) red-orange-orange (d) red-red-orange
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does green stand for?
  8. 8.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) brown-red-brown (d) brown-red-red
  11. 11.🌈 In the resistor colour code, which number does grey stand for?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  13. 13.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-brown (b) orange-black-black (c) orange-red-black (d) red-black-black
  16. 16.🌈 In the resistor colour code, which number does orange stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-yellow (b) yellow-orange-orange (c) orange-yellow-red (d) orange-yellow-orange
  18. 18.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-orange (b) orange-blue-yellow (c) blue-orange-orange (d) orange-blue-red
  25. 25.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does yellow stand for?
  30. 30.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does brown stand for?
  32. 32.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49 Ω resistor? (a) yellow-white-black (b) yellow-white-brown (c) white-yellow-black (d) green-white-black
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) red-yellow-black (b) yellow-red-brown (c) green-red-black (d) yellow-red-black
  35. 35.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-red (b) red-brown-red (c) brown-black-orange (d) brown-black-brown
  39. 39.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. grey-red-brown
  2. the one nearest an end
  3. orange-grey-brown
  4. red-red-orange
  5. 0
  6. 860
  7. 5
  8. 25000
  9. 47
  10. brown-red-red
  11. 8
  12. 5 %
  13. 7.4
  14. 7
  15. red-black-black
  16. 3
  17. orange-yellow-orange
  18. 230
  19. 67000
  20. 640
  21. 94000
  22. 53
  23. 34000
  24. orange-blue-orange
  25. 56
  26. 2
  27. 37
  28. 66000
  29. 4
  30. 55000
  31. 1
  32. 8.5
  33. yellow-white-black
  34. yellow-red-black
  35. 690
  36. 990
  37. 9800
  38. brown-black-red
  39. 2200
  40. 830

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