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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 102 · 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 gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-brown (b) orange-yellow-orange (c) orange-yellow-red (d) yellow-orange-red
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  17. 17.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-grey-brown (b) white-grey-black (c) grey-grey-black (d) grey-white-black
  19. 19.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) grey-violet-brown (b) violet-grey-black (c) violet-grey-brown (d) violet-grey-red
  21. 21.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-brown (b) blue-white-brown (c) white-blue-black (d) white-blue-red
  23. 23.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does blue stand for?
  29. 29.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-yellow (b) white-orange-orange (c) orange-white-orange (d) white-orange-red
  33. 33.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does grey stand for?
  35. 35.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-orange (b) blue-white-red (c) blue-white-yellow (d) white-blue-orange
  37. 37.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-black (b) orange-brown-brown (c) yellow-brown-black (d) brown-orange-black
  39. 39.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does orange stand for?

Answer key

  1. 5 %
  2. 9.2
  3. 2
  4. 78
  5. 850
  6. 9.7
  7. 1.7
  8. 85
  9. 7
  10. 310
  11. 1
  12. orange-yellow-red
  13. 5
  14. 9
  15. 67
  16. 510
  17. the one nearest an end
  18. grey-grey-black
  19. 1600
  20. violet-grey-brown
  21. 4.8
  22. white-blue-brown
  23. 3.4
  24. 520
  25. 32
  26. 15
  27. 9300
  28. 6
  29. 810
  30. 4700
  31. 610
  32. white-orange-orange
  33. 95
  34. 8
  35. 9.6
  36. blue-white-orange
  37. 93
  38. orange-brown-black
  39. 470
  40. 3

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