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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 429 · 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 yellow, red, red. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  4. 4.🌈 In the resistor colour code, which number does red stand for?
  5. 5.🌈 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
  6. 6.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-brown (b) yellow-grey-brown (c) grey-yellow-red (d) grey-yellow-black
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-red-black (d) brown-red-black
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-black (b) grey-black-brown (c) white-grey-brown (d) grey-black-red
  11. 11.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 In the resistor colour code, which number does black stand for?
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) orange-white-black (b) white-red-black (c) red-white-brown (d) red-white-black
  23. 23.🌈 In the resistor colour code, which number does grey stand for?
  24. 24.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-green-red (b) yellow-yellow-orange (c) yellow-yellow-brown (d) yellow-yellow-red
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) brown-orange-brown (c) orange-brown-brown (d) orange-brown-black
  32. 32.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-yellow (b) yellow-grey-orange (c) grey-yellow-red (d) grey-yellow-orange
  34. 34.🌈 In the resistor colour code, which number does orange stand for?
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-black (b) violet-violet-black (c) blue-violet-brown (d) violet-blue-black
  38. 38.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-green-black (d) green-blue-brown

Answer key

  1. 4200
  2. 6.3
  3. 5 %
  4. 2
  5. the one nearest an end
  6. 8.1
  7. 41000
  8. grey-yellow-brown
  9. brown-red-black
  10. grey-black-brown
  11. 9
  12. 33000
  13. 590
  14. 74
  15. 63000
  16. 6
  17. 0
  18. 1
  19. 8600
  20. 800
  21. 260
  22. red-white-black
  23. 8
  24. 680
  25. 5
  26. 250
  27. yellow-yellow-red
  28. 4
  29. 75
  30. 43
  31. orange-brown-brown
  32. 11
  33. grey-yellow-orange
  34. 3
  35. 7
  36. 9.1
  37. blue-violet-black
  38. 93
  39. 310
  40. green-green-brown

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