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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 464 · 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.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  7. 7.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) yellow-white-red (b) white-yellow-orange (c) white-yellow-red (d) white-yellow-brown
  9. 9.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-black-black (b) orange-red-black (c) red-black-brown (d) red-black-black
  14. 14.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-orange (c) brown-blue-red (d) brown-blue-brown
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) orange-violet-black (b) violet-orange-brown (c) grey-orange-black (d) violet-orange-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) orange-green-black (b) red-green-black (c) green-red-black (d) red-green-brown
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) brown-white-orange (b) white-brown-red (c) brown-white-brown (d) brown-white-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) yellow-grey-black (b) white-yellow-black (c) grey-yellow-brown (d) grey-yellow-black
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) red-orange-brown (b) orange-orange-black (c) red-orange-black (d) orange-red-black
  26. 26.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does violet stand for?
  31. 31.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-black (b) red-violet-brown (c) orange-violet-black (d) violet-red-black
  38. 38.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 7.4
  3. 6900
  4. 6
  5. 0
  6. 5 %
  7. 920
  8. white-yellow-red
  9. 7.1
  10. 590
  11. 210
  12. 4
  13. red-black-black
  14. 190
  15. brown-blue-red
  16. 2
  17. violet-orange-black
  18. red-green-black
  19. 3
  20. 2.8
  21. brown-white-red
  22. grey-yellow-black
  23. 1
  24. 93000
  25. red-orange-black
  26. 42
  27. 8.3
  28. 8.7
  29. 6000
  30. 7
  31. 570
  32. 3600
  33. 8
  34. 98
  35. 3.7
  36. 6.2
  37. red-violet-black
  38. 73
  39. 72000
  40. 710

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