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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 171 · 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) 5 % (b) 25 % (c) 0 % (d) 50 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-brown (b) grey-green-red (c) green-grey-red (d) green-grey-orange
  3. 3.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-yellow (b) grey-violet-red (c) violet-grey-orange (d) grey-violet-orange
  6. 6.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-yellow (b) white-green-orange (c) green-white-orange (d) green-white-red
  11. 11.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-red (b) brown-red-brown (c) red-brown-black (d) red-brown-brown
  19. 19.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-black (b) blue-black-brown (c) blue-black-red (d) violet-blue-brown
  22. 22.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-orange (b) violet-black-brown (c) grey-violet-red (d) violet-black-red
  25. 25.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-brown (b) red-violet-red (c) red-violet-orange (d) violet-red-red
  28. 28.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-black (b) brown-violet-brown (c) brown-violet-red (d) violet-brown-brown
  32. 32.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) red-violet-brown (b) violet-red-red (c) violet-red-black (d) violet-red-brown
  39. 39.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-brown (b) brown-red-black (c) orange-brown-black (d) red-brown-black

Answer key

  1. 5 %
  2. green-grey-red
  3. 3.2
  4. 8
  5. grey-violet-orange
  6. 57000
  7. 4
  8. 3
  9. the one nearest an end
  10. green-white-orange
  11. 7.1
  12. 1
  13. 82
  14. 43
  15. 69000
  16. 5000
  17. 2
  18. red-brown-brown
  19. 8.8
  20. 23
  21. blue-black-brown
  22. 6.7
  23. 8600
  24. violet-black-red
  25. 87000
  26. 9.3
  27. red-violet-red
  28. 3100
  29. 2.4
  30. 72
  31. brown-violet-brown
  32. 11
  33. 49
  34. 88000
  35. 11
  36. 4000
  37. 690
  38. violet-red-brown
  39. 34
  40. red-brown-black

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