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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 415 · 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 gold band (b) the widest gap (c) any band (d) the one nearest an end
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does orange stand for?
  6. 6.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-orange (b) green-brown-red (c) brown-green-brown (d) brown-green-red
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-red (b) red-blue-yellow (c) blue-red-orange (d) red-blue-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-orange (b) grey-yellow-yellow (c) yellow-grey-orange (d) grey-yellow-red
  18. 18.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-orange (b) orange-grey-red (c) grey-orange-orange (d) orange-grey-yellow
  28. 28.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does red stand for?
  30. 30.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) violet-green-black (b) blue-violet-black (c) green-violet-black (d) green-violet-brown
  33. 33.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) red-green-brown (b) green-red-red (c) green-red-brown (d) green-red-black
  37. 37.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) red-brown-yellow (d) red-brown-orange

Answer key

  1. the one nearest an end
  2. 5 %
  3. 1.5
  4. 94000
  5. 3
  6. 11
  7. 6
  8. 41
  9. 5
  10. 890
  11. 6100
  12. 4
  13. brown-green-red
  14. 7
  15. 0
  16. red-blue-orange
  17. grey-yellow-orange
  18. 84
  19. 1
  20. 34
  21. 490
  22. 290
  23. 68
  24. 38
  25. 61
  26. 86000
  27. orange-grey-orange
  28. 590
  29. 2
  30. 950
  31. 8200
  32. green-violet-black
  33. 34
  34. 94
  35. 9
  36. green-red-brown
  37. 83
  38. 760
  39. 7.3
  40. red-brown-orange

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