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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 554 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 In the resistor colour code, which number does blue stand for?
  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 gold band (c) the widest gap (d) any band
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-black (b) yellow-grey-brown (c) grey-yellow-brown (d) grey-yellow-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) green-violet-black (b) violet-green-brown (c) violet-green-black (d) grey-green-black
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-black (b) blue-yellow-black (c) yellow-blue-brown (d) green-blue-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-brown (b) violet-red-red (c) red-violet-orange (d) red-violet-red
  14. 14.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-black (b) blue-yellow-brown (c) yellow-blue-brown (d) blue-yellow-red
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) green-orange-black (b) orange-yellow-black (c) yellow-orange-brown (d) yellow-orange-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) brown-blue-orange (b) blue-brown-red (c) blue-brown-orange (d) blue-brown-yellow
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) grey-yellow-red (b) yellow-grey-orange (c) yellow-grey-red (d) yellow-grey-brown
  20. 20.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-black (c) yellow-violet-black (d) green-violet-black
  22. 22.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does yellow stand for?
  24. 24.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) green-black-brown (b) green-black-black (c) blue-black-black (d) blue-green-black
  27. 27.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) violet-blue-orange (b) blue-black-red (c) blue-black-yellow (d) blue-black-orange
  29. 29.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) green-blue-red (b) green-blue-orange (c) blue-green-orange (d) green-blue-yellow
  33. 33.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 280 Ω resistor? (a) red-grey-brown (b) red-grey-black (c) red-grey-red (d) grey-red-brown
  36. 36.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) white-orange-red (b) orange-white-brown (c) orange-white-orange (d) orange-white-red
  38. 38.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8700 Ω resistor? (a) grey-violet-red (b) violet-grey-red (c) grey-violet-orange (d) grey-violet-brown

Answer key

  1. 0
  2. 6
  3. 5 %
  4. the one nearest an end
  5. 1
  6. 8
  7. grey-yellow-brown
  8. violet-green-black
  9. 2
  10. 3
  11. 830
  12. yellow-blue-black
  13. red-violet-red
  14. 750
  15. 5
  16. blue-yellow-brown
  17. yellow-orange-black
  18. blue-brown-orange
  19. yellow-grey-red
  20. 16
  21. yellow-violet-black
  22. 9600
  23. 4
  24. 79
  25. 240
  26. green-black-black
  27. 34000
  28. blue-black-orange
  29. 830
  30. 9400
  31. 590
  32. green-blue-orange
  33. 200
  34. 130
  35. red-grey-brown
  36. 5000
  37. orange-white-red
  38. 4.8
  39. 550
  40. grey-violet-red

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