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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 206 · 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.🌈 In the resistor colour code, which number does violet stand for?
  2. 2.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  4. 4.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) violet-green-red (b) green-violet-red (c) green-violet-brown (d) green-violet-orange
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) red-grey-red (b) grey-red-red (c) grey-red-orange (d) grey-red-brown
  7. 7.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  8. 8.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) orange-red-red (c) red-black-brown (d) red-black-orange
  10. 10.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-red-black (c) brown-brown-black (d) brown-brown-brown
  14. 14.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-red-black (b) brown-red-black (c) red-brown-black (d) brown-red-brown
  21. 21.🌈 In the resistor colour code, which number does grey stand for?
  22. 22.🌈 In the resistor colour code, which number does blue stand for?
  23. 23.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-grey-brown (b) white-grey-black (c) grey-white-black (d) grey-grey-black
  27. 27.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-blue-black (b) violet-blue-black (c) blue-violet-black (d) blue-blue-brown
  33. 33.🌈 In the resistor colour code, which number does red stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-black (b) grey-orange-red (c) grey-orange-brown (d) orange-grey-brown
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-red (b) grey-red-black (c) red-grey-brown (d) grey-red-brown
  36. 36.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does black stand for?
  39. 39.🌈 In the resistor colour code, which number does yellow stand for?
  40. 40.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?

Answer key

  1. 7
  2. 69
  3. 5 %
  4. 2400
  5. green-violet-red
  6. grey-red-red
  7. the one nearest an end
  8. 8
  9. red-black-red
  10. 21000
  11. 84
  12. 56000
  13. brown-brown-black
  14. 630
  15. 3.3
  16. 890
  17. 9.7
  18. 2.8
  19. 5
  20. brown-red-black
  21. 8
  22. 6
  23. 52
  24. 1.3
  25. 9.3
  26. grey-grey-black
  27. 9.2
  28. 960
  29. 3
  30. 1.9
  31. 390
  32. blue-blue-black
  33. 2
  34. grey-orange-brown
  35. grey-red-brown
  36. 950
  37. 1300
  38. 0
  39. 4
  40. 88

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