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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 143 · 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 orange stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) red-orange-orange (b) orange-red-red (c) orange-red-orange (d) orange-red-yellow
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  4. 4.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 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
  8. 8.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) brown-red-black (b) orange-brown-black (c) red-brown-brown (d) red-brown-black
  12. 12.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-red (b) brown-yellow-brown (c) yellow-brown-black (d) yellow-brown-brown
  14. 14.🌈 In the resistor colour code, which number does blue stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) green-brown-red (b) brown-green-red (c) brown-green-orange (d) brown-green-brown
  16. 16.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does white stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) green-blue-yellow (b) green-blue-orange (c) green-blue-red (d) blue-green-orange
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) yellow-red-brown (b) yellow-red-black (c) green-red-black (d) red-yellow-black
  21. 21.🌈 In the resistor colour code, which number does black stand for?
  22. 22.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-yellow (b) yellow-orange-orange (c) orange-yellow-orange (d) orange-yellow-red
  27. 27.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 In the resistor colour code, which number does grey stand for?
  32. 32.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) grey-brown-red (b) brown-grey-red (c) brown-grey-orange (d) brown-grey-brown
  38. 38.🌈 In the resistor colour code, which number does brown stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-orange (b) yellow-white-red (c) white-yellow-brown (d) white-yellow-red
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-red-black (c) red-brown-black (d) brown-red-black

Answer key

  1. 3
  2. orange-red-orange
  3. 5 %
  4. 10000
  5. 530
  6. 6.2
  7. the one nearest an end
  8. 32
  9. 860
  10. 2
  11. red-brown-black
  12. 10
  13. yellow-brown-brown
  14. 6
  15. brown-green-red
  16. 41000
  17. 9
  18. green-blue-orange
  19. 7
  20. yellow-red-black
  21. 0
  22. 1.9
  23. 86000
  24. 9100
  25. 760
  26. orange-yellow-orange
  27. 4
  28. 1100
  29. 180
  30. 4
  31. 8
  32. 700
  33. 9700
  34. 79
  35. 2.4
  36. 99000
  37. brown-grey-red
  38. 1
  39. white-yellow-red
  40. brown-red-black

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