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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 207 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) white-violet-black (b) violet-white-black (c) violet-white-brown (d) grey-white-black
  2. 2.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  5. 5.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does blue stand for?
  7. 7.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-red (b) orange-yellow-red (c) orange-orange-brown (d) orange-orange-orange
  12. 12.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) yellow-grey-orange (b) yellow-grey-yellow (c) grey-yellow-orange (d) yellow-grey-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) brown-green-brown (b) red-green-black (c) green-brown-black (d) brown-green-black
  17. 17.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-red (b) green-white-yellow (c) white-green-orange (d) green-white-orange
  19. 19.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54000 Ω resistor? (a) green-yellow-yellow (b) yellow-green-orange (c) green-yellow-red (d) green-yellow-orange
  22. 22.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-red (b) red-grey-brown (c) grey-red-black (d) grey-red-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-black (b) red-yellow-black (c) yellow-brown-black (d) brown-yellow-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) grey-brown-orange (b) grey-brown-yellow (c) grey-brown-red (d) brown-grey-orange
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) blue-green-black (b) green-blue-black (c) green-green-brown (d) green-green-black
  30. 30.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does green stand for?
  33. 33.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) orange-red-brown (b) red-black-black (c) red-black-brown (d) red-black-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) grey-orange-black (b) orange-grey-black (c) orange-grey-brown (d) yellow-grey-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) red-grey-orange (c) grey-red-red (d) grey-red-orange
  37. 37.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does yellow stand for?

Answer key

  1. violet-white-black
  2. 2100
  3. the one nearest an end
  4. 5 %
  5. 1300
  6. 6
  7. 770
  8. 0
  9. 96
  10. 73000
  11. orange-orange-red
  12. 2000
  13. 3.8
  14. 5000
  15. yellow-grey-orange
  16. brown-green-black
  17. 700
  18. green-white-orange
  19. 72000
  20. 6.4
  21. green-yellow-orange
  22. 32
  23. 8300
  24. 810
  25. 760
  26. grey-red-brown
  27. brown-yellow-black
  28. grey-brown-orange
  29. green-green-black
  30. 50
  31. 40
  32. 5
  33. 670
  34. red-black-brown
  35. orange-grey-black
  36. grey-red-orange
  37. 56
  38. 23
  39. 60
  40. 4

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