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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 641 · 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 white, red, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-yellow (b) white-orange-red (c) orange-white-orange (d) white-orange-orange
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) violet-brown-brown (b) brown-violet-black (c) grey-brown-black (d) violet-brown-black
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) orange-brown-black (c) red-orange-black (d) brown-orange-brown
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  6. 6.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) violet-orange-orange (b) violet-orange-yellow (c) orange-violet-orange (d) violet-orange-red
  10. 10.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-black (c) yellow-yellow-red (d) yellow-yellow-brown
  13. 13.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-red (b) white-grey-brown (c) grey-black-black (d) grey-black-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) green-brown-brown (b) brown-green-red (c) brown-green-brown (d) brown-green-black
  25. 25.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does grey stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-orange (b) white-violet-brown (c) violet-white-red (d) white-violet-red
  28. 28.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-black (b) white-black-black (c) brown-white-black (d) white-white-brown
  34. 34.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, orange, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-orange (b) grey-blue-red (c) blue-grey-brown (d) blue-grey-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) red-black-black (b) brown-black-brown (c) red-brown-black (d) brown-black-black
  38. 38.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?

Answer key

  1. 9.2
  2. white-orange-orange
  3. violet-brown-black
  4. brown-orange-black
  5. 5 %
  6. 35
  7. 12000
  8. 13
  9. violet-orange-orange
  10. 23000
  11. 59
  12. yellow-yellow-brown
  13. 35
  14. 6700
  15. 3
  16. the one nearest an end
  17. 1
  18. 0
  19. 8.1
  20. 620
  21. 710
  22. 2
  23. grey-black-brown
  24. brown-green-brown
  25. 350
  26. 8
  27. white-violet-red
  28. 9.3
  29. 80
  30. 28
  31. 19
  32. 30000
  33. white-white-black
  34. 220
  35. 4300
  36. blue-grey-red
  37. brown-black-black
  38. 5800
  39. 70000
  40. 210

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