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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 329 · 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) 50 % (b) 25 % (c) 0 % (d) 5 %
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  3. 3.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) brown-yellow-red (b) yellow-brown-orange (c) yellow-brown-red (d) yellow-brown-brown
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) blue-white-brown (b) white-blue-brown (c) white-blue-red (d) white-blue-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) violet-white-red (b) white-violet-brown (c) violet-white-brown (d) violet-white-black
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-orange (b) grey-violet-red (c) violet-grey-orange (d) grey-violet-yellow
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75000 Ω resistor? (a) violet-green-red (b) violet-green-orange (c) green-violet-orange (d) violet-green-yellow
  11. 11.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-black (b) white-orange-black (c) orange-white-brown (d) yellow-white-black
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-brown (b) grey-violet-brown (c) violet-grey-red (d) violet-grey-black
  16. 16.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-brown (b) white-brown-black (c) brown-brown-black (d) brown-white-black
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) grey-brown-black (b) brown-grey-black (c) brown-grey-brown (d) red-grey-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-brown (b) red-black-black (c) orange-red-black (d) orange-black-black
  21. 21.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-orange (b) red-brown-orange (c) brown-red-red (d) brown-red-yellow
  23. 23.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-red (b) orange-black-brown (c) orange-black-black (d) yellow-orange-brown
  27. 27.🌈 In the resistor colour code, which number does green stand for?
  28. 28.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) green-yellow-black (c) yellow-green-brown (d) green-green-black
  33. 33.🌈 In the resistor colour code, which number does red stand for?
  34. 34.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 In the resistor colour code, which number does brown stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-red (b) blue-violet-brown (c) blue-blue-brown (d) blue-blue-black
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-yellow (b) green-red-orange (c) green-red-red (d) red-green-orange

Answer key

  1. 5 %
  2. the one nearest an end
  3. 72
  4. 910
  5. yellow-brown-red
  6. white-blue-brown
  7. violet-white-brown
  8. 8
  9. grey-violet-orange
  10. violet-green-orange
  11. 1
  12. orange-white-black
  13. 0
  14. 3
  15. violet-grey-brown
  16. 9.3
  17. white-brown-black
  18. 9
  19. brown-grey-black
  20. red-black-black
  21. 6.6
  22. brown-red-orange
  23. 7.3
  24. 15
  25. 92
  26. orange-black-brown
  27. 5
  28. 5.3
  29. 610
  30. 2800
  31. 210
  32. yellow-green-black
  33. 2
  34. 230
  35. 900
  36. 200
  37. 7
  38. 1
  39. blue-blue-brown
  40. green-red-orange

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