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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 86 · 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) 5 % (b) 50 % (c) 25 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-orange (b) grey-red-yellow (c) red-grey-orange (d) grey-red-red
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  6. 6.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8400 Ω resistor? (a) grey-yellow-orange (b) grey-yellow-red (c) yellow-grey-red (d) grey-yellow-brown
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-orange (b) orange-yellow-orange (c) yellow-orange-red (d) yellow-orange-yellow
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-brown (b) violet-white-red (c) white-violet-red (d) white-violet-orange
  10. 10.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-black (b) grey-black-black (c) grey-violet-black (d) violet-black-brown
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-orange-orange (b) red-red-orange (c) red-red-red (d) red-red-yellow
  17. 17.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) orange-green-brown (b) green-orange-black (c) green-orange-brown (d) green-orange-red
  19. 19.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) white-brown-brown (b) brown-white-brown (c) brown-white-red (d) brown-white-black
  22. 22.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) yellow-blue-black (b) orange-blue-brown (c) blue-orange-black (d) orange-blue-black
  29. 29.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does violet stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-orange (b) grey-white-red (c) white-grey-brown (d) white-grey-red
  35. 35.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does yellow stand for?
  39. 39.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 5000
  3. grey-red-orange
  4. 3
  5. the one nearest an end
  6. 59000
  7. grey-yellow-red
  8. yellow-orange-orange
  9. white-violet-red
  10. 9900
  11. 33
  12. 2
  13. 64
  14. 0
  15. violet-black-black
  16. red-red-orange
  17. 2400
  18. green-orange-brown
  19. 16
  20. 82
  21. brown-white-brown
  22. 21
  23. 5
  24. 770
  25. 61
  26. 910
  27. 8
  28. orange-blue-black
  29. 8.6
  30. 560
  31. 910
  32. 260
  33. 7
  34. white-grey-red
  35. 6200
  36. 780
  37. 390
  38. 4
  39. 620
  40. 630

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