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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 497 · 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 band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  2. 2.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-brown (b) red-grey-black (c) grey-red-black (d) orange-grey-black
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  6. 6.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-red (b) brown-violet-yellow (c) violet-brown-orange (d) brown-violet-orange
  8. 8.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-orange (b) green-grey-yellow (c) grey-green-orange (d) green-grey-red
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) yellow-black-black (c) green-black-black (d) yellow-black-brown
  13. 13.🌈 In the resistor colour code, which number does violet stand for?
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) orange-red-orange (b) red-black-red (c) red-black-yellow (d) red-black-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-red (b) white-violet-yellow (c) white-violet-orange (d) violet-white-orange
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-brown (b) white-orange-black (c) orange-white-black (d) brown-orange-black
  20. 20.🌈 In the resistor colour code, which number does green stand for?
  21. 21.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-brown (b) white-grey-red (c) grey-white-red (d) white-grey-orange
  25. 25.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-red (b) grey-orange-orange (c) grey-orange-brown (d) orange-grey-red
  27. 27.🌈 In the resistor colour code, which number does white stand for?
  28. 28.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-red (b) yellow-orange-brown (c) orange-black-brown (d) orange-black-black
  31. 31.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) violet-orange-black (b) orange-violet-brown (c) orange-violet-black (d) yellow-violet-black
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-red (b) brown-white-orange (c) white-brown-orange (d) white-brown-yellow
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) brown-red-yellow (d) brown-red-orange
  39. 39.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 55
  3. 52
  4. red-grey-black
  5. 5 %
  6. 3200
  7. brown-violet-orange
  8. 54000
  9. 2
  10. 6
  11. green-grey-orange
  12. yellow-black-black
  13. 7
  14. 3
  15. 32000
  16. 62000
  17. red-black-orange
  18. white-violet-orange
  19. white-orange-black
  20. 5
  21. 10
  22. 98
  23. 4.1
  24. white-grey-red
  25. 2.1
  26. grey-orange-red
  27. 9
  28. 150
  29. 2.6
  30. orange-black-brown
  31. 480
  32. orange-violet-black
  33. 0
  34. 360
  35. 6.6
  36. 310
  37. white-brown-orange
  38. brown-red-orange
  39. 46
  40. 17

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