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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 8 · 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) 0 % (b) 5 % (c) 50 % (d) 25 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) brown-blue-black (b) blue-brown-brown (c) brown-blue-red (d) brown-blue-brown
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) brown-yellow-black (b) yellow-brown-brown (c) green-brown-black (d) yellow-brown-black
  4. 4.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-orange (b) blue-black-brown (c) violet-blue-red (d) blue-black-red
  6. 6.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) violet-red-brown (b) red-violet-brown (c) red-violet-red (d) red-violet-black
  11. 11.🌈 In the resistor colour code, which number does red stand for?
  12. 12.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  14. 14.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) brown-grey-black (b) white-brown-black (c) grey-brown-black (d) grey-brown-brown
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) grey-green-orange (b) green-grey-red (c) green-grey-yellow (d) green-grey-orange
  17. 17.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-brown (b) green-black-black (c) green-black-red (d) blue-green-brown
  19. 19.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) violet-orange-black (b) orange-violet-black (c) grey-orange-black (d) violet-orange-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) blue-grey-orange (b) blue-grey-red (c) blue-grey-yellow (d) grey-blue-orange
  23. 23.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) grey-yellow-brown (b) white-yellow-black (c) grey-yellow-black (d) yellow-grey-black
  26. 26.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8700 Ω resistor? (a) grey-violet-brown (b) grey-violet-orange (c) grey-violet-red (d) violet-grey-red
  28. 28.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) grey-black-black (b) violet-black-black (c) violet-black-brown (d) grey-violet-black
  38. 38.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does blue stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) blue-red-brown (b) red-blue-black (c) red-blue-red (d) red-blue-brown

Answer key

  1. 5 %
  2. brown-blue-brown
  3. yellow-brown-black
  4. 5800
  5. blue-black-red
  6. 1.4
  7. 800
  8. 23
  9. 3
  10. red-violet-brown
  11. 2
  12. 1300
  13. 310
  14. the one nearest an end
  15. grey-brown-black
  16. green-grey-orange
  17. 830
  18. green-black-brown
  19. 1.1
  20. 25
  21. violet-orange-black
  22. blue-grey-orange
  23. 78000
  24. 5
  25. grey-yellow-black
  26. 95
  27. grey-violet-red
  28. 4.1
  29. 2100
  30. 96
  31. 15000
  32. 100
  33. 52
  34. 1
  35. 9
  36. 83000
  37. violet-black-black
  38. 990
  39. 6
  40. red-blue-brown

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