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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 363 · 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 brown stand for?
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-brown (b) yellow-red-orange (c) red-yellow-red (d) yellow-red-red
  7. 7.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) white-orange-orange (b) orange-white-red (c) orange-white-yellow (d) orange-white-orange
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  14. 14.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  17. 17.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  18. 18.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-brown (b) blue-violet-brown (c) blue-blue-black (d) blue-blue-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-red (b) white-red-black (c) red-white-brown (d) white-red-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-black (b) brown-violet-brown (c) violet-brown-brown (d) brown-violet-red
  23. 23.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-black (b) brown-white-brown (c) brown-white-red (d) white-brown-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-red (b) red-red-yellow (c) red-orange-orange (d) red-red-orange
  28. 28.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) orange-green-brown (b) green-orange-black (c) green-orange-red (d) green-orange-brown
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does orange stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) violet-blue-black (b) blue-violet-black (c) blue-violet-brown (d) violet-violet-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-brown (b) orange-yellow-red (c) orange-yellow-black (d) yellow-orange-brown
  37. 37.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 1
  2. 4
  3. 73000
  4. 9
  5. 770
  6. yellow-red-red
  7. 670
  8. 6800
  9. orange-white-orange
  10. 6
  11. 310
  12. 8
  13. 5 %
  14. 53
  15. 7.6
  16. 9700
  17. the one nearest an end
  18. 5.1
  19. 100
  20. blue-blue-brown
  21. white-red-brown
  22. brown-violet-brown
  23. 2.8
  24. 190
  25. 5.4
  26. brown-white-brown
  27. red-red-orange
  28. 93000
  29. green-orange-brown
  30. 2
  31. 120
  32. 9.8
  33. 620
  34. 3
  35. blue-violet-black
  36. orange-yellow-brown
  37. 53
  38. 9
  39. 34
  40. 8.3

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