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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 208 · 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.

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  1. 1.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) yellow-violet-orange (b) violet-yellow-red (c) violet-yellow-yellow (d) violet-yellow-orange
  4. 4.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  5. 5.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, brown, red. 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 blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  11. 11.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) red-yellow-black (b) yellow-red-black (c) orange-yellow-black (d) red-yellow-brown
  15. 15.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) green-yellow-red (b) yellow-black-orange (c) yellow-black-brown (d) yellow-black-red
  17. 17.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-red (c) violet-red-yellow (d) violet-red-orange
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) yellow-black-black (c) yellow-black-brown (d) green-black-black
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does blue stand for?
  27. 27.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-yellow (b) yellow-blue-orange (c) yellow-blue-red (d) blue-yellow-orange
  31. 31.🌈 In the resistor colour code, which number does yellow stand for?
  32. 32.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-brown (b) yellow-violet-red (c) violet-yellow-brown (d) yellow-violet-black
  34. 34.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-brown (b) brown-grey-red (c) grey-brown-orange (d) grey-brown-red
  38. 38.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-brown (b) brown-red-black (c) white-red-black (d) red-white-black

Answer key

  1. 180
  2. 9.8
  3. violet-yellow-orange
  4. the one nearest an end
  5. 10000
  6. 5800
  7. 2.1
  8. 0
  9. 62
  10. 5 %
  11. 780
  12. 36
  13. 700
  14. red-yellow-black
  15. 5600
  16. yellow-black-red
  17. 860
  18. 820
  19. violet-red-orange
  20. yellow-black-black
  21. 1
  22. 15
  23. 16
  24. 880
  25. 710
  26. 6
  27. 4.9
  28. 440
  29. 8.6
  30. yellow-blue-orange
  31. 4
  32. 80
  33. yellow-violet-brown
  34. 96
  35. 2
  36. 50
  37. grey-brown-red
  38. 94
  39. 300
  40. white-red-black

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