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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 274 · 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 yellow stand for?
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-brown (b) red-white-red (c) red-white-orange (d) white-red-red
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) yellow-green-yellow (b) green-yellow-orange (c) yellow-green-red (d) yellow-green-orange
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-black (c) green-blue-brown (d) green-blue-red
  11. 11.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-black (b) blue-blue-brown (c) blue-blue-red (d) blue-violet-brown
  14. 14.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-orange (b) brown-orange-brown (c) brown-orange-red (d) orange-brown-red
  17. 17.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-yellow (b) green-brown-red (c) green-brown-orange (d) brown-green-orange
  20. 20.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-red (b) yellow-brown-brown (c) brown-yellow-brown (d) yellow-brown-black
  24. 24.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-brown (b) orange-yellow-red (c) orange-yellow-orange (d) yellow-orange-red
  30. 30.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-black (b) brown-grey-brown (c) brown-grey-red (d) grey-brown-brown
  32. 32.🌈 In the resistor colour code, which number does white stand for?
  33. 33.🌈 In the resistor colour code, which number does red stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-violet-brown (b) violet-grey-black (c) grey-violet-black (d) violet-violet-black
  35. 35.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-red (b) green-grey-orange (c) green-grey-yellow (d) grey-green-orange

Answer key

  1. 4
  2. 1
  3. red-white-red
  4. the one nearest an end
  5. 5
  6. yellow-green-orange
  7. 5 %
  8. 8
  9. 0
  10. green-blue-brown
  11. 9600
  12. 110
  13. blue-blue-brown
  14. 1500
  15. 3400
  16. brown-orange-red
  17. 38000
  18. 7
  19. green-brown-orange
  20. 120
  21. 180
  22. 210
  23. yellow-brown-brown
  24. 49
  25. 60000
  26. 9.8
  27. 38
  28. 36
  29. orange-yellow-red
  30. 690
  31. brown-grey-brown
  32. 9
  33. 2
  34. violet-violet-black
  35. 42
  36. 420
  37. 5.8
  38. 96
  39. 2
  40. green-grey-orange

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