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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 887 · 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 gold band (b) the widest gap (c) the one nearest an end (d) any band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-yellow (b) orange-black-orange (c) orange-black-red (d) yellow-orange-orange
  3. 3.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-red (b) yellow-brown-black (c) brown-yellow-brown (d) yellow-brown-brown
  9. 9.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-brown (b) violet-white-red (c) white-violet-red (d) violet-white-orange
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) orange-red-brown (b) red-black-black (c) red-black-brown (d) red-black-red
  16. 16.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  20. 20.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  21. 21.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-yellow (b) orange-orange-red (c) orange-orange-orange (d) orange-yellow-orange
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-brown (b) white-brown-black (c) brown-white-black (d) red-white-black
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) blue-grey-orange (b) grey-blue-orange (c) grey-blue-red (d) grey-blue-yellow
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-red (b) white-violet-brown (c) violet-white-red (d) white-violet-orange
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-yellow (b) brown-brown-orange (c) brown-brown-red (d) brown-red-orange
  33. 33.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-orange (b) brown-white-red (c) brown-white-yellow (d) white-brown-orange
  36. 36.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-black (b) brown-red-brown (c) brown-brown-red (d) brown-brown-brown
  38. 38.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-red-black (d) brown-red-black

Answer key

  1. the one nearest an end
  2. orange-black-orange
  3. 9.5
  4. 7.8
  5. 520
  6. 640
  7. 3.2
  8. yellow-brown-brown
  9. 2700
  10. 2200
  11. 810
  12. 38
  13. 77000
  14. violet-white-red
  15. red-black-brown
  16. 430
  17. 1
  18. 0
  19. 39000
  20. 5 %
  21. 710
  22. orange-orange-orange
  23. brown-white-black
  24. grey-blue-orange
  25. 7
  26. 2
  27. 6
  28. 6000
  29. 14000
  30. 4
  31. white-violet-red
  32. brown-brown-orange
  33. 56
  34. 58
  35. brown-white-orange
  36. 320
  37. brown-brown-brown
  38. 160
  39. 360
  40. brown-red-black

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