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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 98 · 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 a 76000 Ω resistor? (a) violet-blue-orange (b) violet-blue-red (c) blue-violet-orange (d) violet-blue-yellow
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-red (b) red-white-orange (c) red-white-yellow (d) white-red-orange
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  4. 4.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  5. 5.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-brown (b) orange-yellow-orange (c) orange-yellow-red (d) yellow-orange-red
  7. 7.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98000 Ω resistor? (a) grey-white-orange (b) white-grey-red (c) white-grey-yellow (d) white-grey-orange
  9. 9.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does red stand for?
  12. 12.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does blue stand for?
  14. 14.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-black (b) green-orange-brown (c) orange-green-brown (d) orange-green-red
  17. 17.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-brown (b) violet-black-red (c) violet-black-orange (d) grey-violet-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-orange (b) blue-brown-orange (c) brown-blue-red (d) brown-blue-yellow
  20. 20.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) green-violet-brown (b) green-violet-orange (c) violet-green-red (d) green-violet-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-red (b) white-white-yellow (c) white-black-orange (d) white-white-orange
  26. 26.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) yellow-orange-red (b) yellow-orange-brown (c) orange-yellow-brown (d) yellow-orange-black
  31. 31.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) white-red-black (b) red-grey-black (c) grey-red-brown (d) grey-red-black
  34. 34.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) violet-red-brown (b) red-violet-red (c) red-violet-black (d) red-violet-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-orange (b) blue-orange-yellow (c) blue-orange-red (d) orange-blue-orange
  39. 39.🌈 In the resistor colour code, which number does grey stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) white-grey-orange (b) grey-black-yellow (c) grey-black-red (d) grey-black-orange

Answer key

  1. violet-blue-orange
  2. red-white-orange
  3. 5 %
  4. the one nearest an end
  5. 100
  6. orange-yellow-red
  7. 5.5
  8. white-grey-orange
  9. 84
  10. 30
  11. 2
  12. 6.6
  13. 6
  14. 59
  15. 330
  16. orange-green-brown
  17. 280
  18. violet-black-red
  19. brown-blue-orange
  20. 2.1
  21. 480
  22. 290
  23. 370
  24. green-violet-red
  25. white-white-orange
  26. 210
  27. 66000
  28. 710
  29. 170
  30. yellow-orange-brown
  31. 2.3
  32. 66
  33. grey-red-black
  34. 12000
  35. 9
  36. 1
  37. red-violet-brown
  38. blue-orange-orange
  39. 8
  40. grey-black-orange

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