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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 48 · 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) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  2. 2.🌈 In the resistor colour code, which number does grey stand for?
  3. 3.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  10. 10.🌈 In the resistor colour code, which number does black stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-brown (b) blue-green-brown (c) green-black-red (d) green-black-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-brown (b) green-orange-red (c) green-orange-orange (d) orange-green-red
  13. 13.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-red (b) white-green-red (c) green-white-brown (d) green-white-orange
  15. 15.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, yellow, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-black (b) blue-white-brown (c) white-blue-brown (d) white-blue-red
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-black (b) yellow-violet-brown (c) violet-yellow-brown (d) yellow-violet-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-violet-orange (b) blue-blue-orange (c) blue-blue-yellow (d) blue-blue-red
  20. 20.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-yellow (b) violet-blue-orange (c) blue-black-red (d) blue-black-orange
  22. 22.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-brown (b) grey-orange-black (c) orange-grey-brown (d) grey-orange-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 280 Ω resistor? (a) red-grey-red (b) red-grey-black (c) grey-red-brown (d) red-grey-brown
  29. 29.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-yellow (b) brown-orange-red (c) brown-orange-orange (d) orange-brown-orange
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8400 Ω resistor? (a) grey-yellow-brown (b) grey-yellow-red (c) yellow-grey-red (d) grey-yellow-orange
  32. 32.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) orange-red-black (c) red-orange-black (d) red-orange-brown
  34. 34.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-grey-black (b) grey-violet-black (c) violet-violet-brown (d) violet-violet-black
  36. 36.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-red (b) blue-green-orange (c) green-black-orange (d) green-black-yellow
  38. 38.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does white stand for?

Answer key

  1. the one nearest an end
  2. 8
  3. 9900
  4. 5600
  5. 3900
  6. 4100
  7. 220
  8. 3
  9. 5 %
  10. 0
  11. green-black-brown
  12. green-orange-red
  13. 280
  14. green-white-red
  15. 94
  16. 8400
  17. white-blue-brown
  18. yellow-violet-brown
  19. blue-blue-orange
  20. 6.2
  21. blue-black-orange
  22. 770
  23. 7200
  24. 97
  25. 190
  26. 53
  27. grey-orange-brown
  28. red-grey-brown
  29. 85000
  30. brown-orange-orange
  31. grey-yellow-red
  32. 33
  33. red-orange-black
  34. 80
  35. violet-violet-black
  36. 1800
  37. green-black-orange
  38. 200
  39. 8.4
  40. 9

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