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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 34 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-brown (b) brown-green-red (c) green-brown-orange (d) green-brown-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) yellow-brown-red (b) brown-yellow-brown (c) brown-yellow-orange (d) brown-yellow-red
  6. 6.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) orange-green-black (b) green-red-black (c) red-green-black (d) red-green-brown
  16. 16.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-red (b) brown-violet-orange (c) violet-brown-yellow (d) violet-brown-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) brown-white-orange (b) brown-white-brown (c) white-brown-red (d) brown-white-red
  19. 19.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) grey-green-brown (b) green-grey-red (c) green-grey-brown (d) green-grey-black
  21. 21.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-green-red (b) yellow-yellow-orange (c) yellow-yellow-brown (d) yellow-yellow-red
  24. 24.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) yellow-grey-black (b) grey-yellow-brown (c) white-yellow-black (d) grey-yellow-black
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) green-red-orange (b) red-green-orange (c) red-green-yellow (d) red-green-red
  33. 33.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-orange (b) yellow-black-red (c) green-yellow-red (d) yellow-black-brown
  40. 40.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 0
  2. the one nearest an end
  3. 2
  4. green-brown-red
  5. brown-yellow-red
  6. 730
  7. 57
  8. 1
  9. 590
  10. 34
  11. 94
  12. 110
  13. 8
  14. 9
  15. red-green-black
  16. 5 %
  17. violet-brown-orange
  18. brown-white-red
  19. 510
  20. green-grey-brown
  21. 66
  22. 34000
  23. yellow-yellow-red
  24. 9900
  25. 5
  26. 200
  27. 1000
  28. 770
  29. 550
  30. 170
  31. grey-yellow-black
  32. red-green-orange
  33. 870
  34. 4
  35. 5.1
  36. 9800
  37. 3.4
  38. 33000
  39. yellow-black-red
  40. 10

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