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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 571 · 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.

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  1. 1.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-red (b) green-red-yellow (c) green-red-orange (d) red-green-orange
  4. 4.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) yellow-black-red (c) green-yellow-orange (d) yellow-black-orange
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-brown (c) violet-yellow-red (d) violet-yellow-black
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-brown (b) brown-white-red (c) white-black-red (d) white-black-orange
  11. 11.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) orange-brown-red (b) brown-orange-orange (c) brown-orange-brown (d) brown-orange-red
  13. 13.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) yellow-blue-black (b) orange-blue-brown (c) orange-blue-black (d) blue-orange-black
  16. 16.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-red (b) yellow-violet-black (c) violet-yellow-brown (d) yellow-violet-brown
  19. 19.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) blue-white-red (b) white-blue-orange (c) white-blue-red (d) white-blue-brown
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) orange-brown-black (b) red-orange-black (c) brown-orange-brown (d) brown-orange-black
  32. 32.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) green-yellow-brown (b) yellow-green-brown (c) yellow-green-red (d) yellow-green-black
  35. 35.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  38. 38.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) red-orange-orange (b) red-orange-red (c) orange-red-orange (d) red-orange-yellow
  40. 40.🌈 In the resistor colour code, which number does violet stand for?

Answer key

  1. 75
  2. 360
  3. green-red-orange
  4. 110
  5. 0
  6. 3
  7. yellow-black-orange
  8. violet-yellow-brown
  9. 4
  10. white-black-red
  11. 1.6
  12. brown-orange-red
  13. 3.1
  14. the one nearest an end
  15. orange-blue-black
  16. 41
  17. 2
  18. yellow-violet-brown
  19. 90
  20. 6300
  21. 320
  22. 46
  23. white-blue-red
  24. 9
  25. 6000
  26. 21
  27. 9.7
  28. 29
  29. 42000
  30. 12
  31. brown-orange-black
  32. 9.3
  33. 5
  34. yellow-green-brown
  35. 1.5
  36. 270
  37. 5 %
  38. 350
  39. red-orange-orange
  40. 7

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