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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 69 · 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 green, white, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  4. 4.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-orange (b) red-brown-yellow (c) red-brown-red (d) brown-red-orange
  12. 12.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-red (b) grey-violet-orange (c) violet-black-yellow (d) violet-black-orange
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-brown (b) red-black-black (c) orange-red-brown (d) red-black-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-red (b) brown-black-orange (c) brown-black-brown (d) red-brown-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-black (b) white-blue-red (c) white-blue-brown (d) blue-white-brown
  17. 17.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) grey-yellow-red (b) yellow-grey-red (c) yellow-grey-brown (d) yellow-grey-orange
  20. 20.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-red (b) white-violet-brown (c) white-violet-orange (d) violet-white-red
  23. 23.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does grey stand for?
  30. 30.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does black stand for?
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. 5.9
  2. 95
  3. the one nearest an end
  4. 870
  5. 5 %
  6. 5
  7. 5.1
  8. 26
  9. 22000
  10. 3
  11. red-brown-orange
  12. 51000
  13. violet-black-orange
  14. red-black-brown
  15. brown-black-red
  16. white-blue-brown
  17. 1900
  18. 82
  19. yellow-grey-red
  20. 7.5
  21. 32
  22. white-violet-red
  23. 520
  24. 1.9
  25. 900
  26. 45
  27. 7.6
  28. 110
  29. 8
  30. 55
  31. 4.2
  32. 1800
  33. 80
  34. 4
  35. 34
  36. 59000
  37. 100
  38. 8900
  39. 0
  40. 2

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