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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 271 · 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.

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  1. 1.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  3. 3.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-red (c) brown-yellow-red (d) yellow-brown-orange
  5. 5.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  7. 7.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) yellow-white-brown (b) white-yellow-brown (c) yellow-white-red (d) yellow-white-black
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) orange-red-brown (b) red-black-brown (c) red-black-red (d) red-black-black
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) yellow-violet-black (b) grey-yellow-black (c) violet-yellow-black (d) violet-yellow-brown
  15. 15.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-brown (b) brown-red-red (c) brown-red-orange (d) red-brown-red
  22. 22.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-yellow (b) yellow-orange-red (c) yellow-orange-orange (d) orange-yellow-orange
  24. 24.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does orange stand for?
  32. 32.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does black stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) white-orange-yellow (c) white-orange-orange (d) orange-white-orange
  37. 37.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-brown (b) red-black-red (c) orange-red-red (d) red-black-orange

Answer key

  1. 7.1
  2. the one nearest an end
  3. 42000
  4. yellow-brown-red
  5. 33
  6. 5 %
  7. 1.1
  8. yellow-white-brown
  9. 7
  10. 360
  11. red-black-brown
  12. 4
  13. 5
  14. violet-yellow-black
  15. 440
  16. 87000
  17. 1.5
  18. 94
  19. 88
  20. 59
  21. brown-red-red
  22. 71
  23. yellow-orange-orange
  24. 2600
  25. 5.3
  26. 65
  27. 99
  28. 23000
  29. 570
  30. 880
  31. 3
  32. 980
  33. 76000
  34. 2.6
  35. 0
  36. white-orange-orange
  37. 6200
  38. 1.8
  39. 83
  40. red-black-red

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