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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 542 · 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.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does blue stand for?
  5. 5.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) blue-brown-black (b) green-brown-black (c) brown-green-black (d) green-brown-brown
  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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-black-black (b) violet-blue-black (c) blue-black-brown (d) blue-black-black
  9. 9.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-black (b) violet-black-brown (c) violet-black-red (d) grey-violet-brown
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) yellow-orange-brown (b) yellow-orange-orange (c) orange-yellow-red (d) yellow-orange-red
  18. 18.🌈 In the resistor colour code, which number does orange stand for?
  19. 19.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does violet stand for?
  23. 23.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does black stand for?
  31. 31.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does white stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) violet-orange-brown (b) orange-violet-black (c) orange-violet-red (d) orange-violet-brown
  34. 34.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-black (b) white-black-red (c) white-black-brown (d) brown-white-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-brown (b) grey-black-black (c) grey-black-red (d) white-grey-brown
  39. 39.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does grey stand for?

Answer key

  1. 60
  2. 5 %
  3. 5.8
  4. 6
  5. 7
  6. green-brown-black
  7. the one nearest an end
  8. blue-black-black
  9. 81000
  10. 88
  11. 1
  12. 2
  13. 3.7
  14. 970
  15. 950
  16. violet-black-brown
  17. yellow-orange-red
  18. 3
  19. 7.9
  20. 15
  21. 10
  22. 7
  23. 480
  24. 71000
  25. 6.2
  26. 67
  27. 37000
  28. 980
  29. 85
  30. 0
  31. 9.9
  32. 9
  33. orange-violet-brown
  34. 410
  35. 98
  36. 38000
  37. white-black-brown
  38. grey-black-brown
  39. 5100
  40. 8

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