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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 278 · 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 red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  3. 3.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) brown-blue-orange (b) blue-brown-red (c) blue-brown-yellow (d) blue-brown-orange
  10. 10.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-brown (b) green-red-black (c) red-green-black (d) blue-red-black
  12. 12.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) white-green-black (b) white-green-brown (c) white-green-red (d) green-white-brown
  14. 14.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) orange-grey-orange (b) grey-orange-orange (c) grey-orange-yellow (d) grey-orange-red
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-black (b) red-white-black (c) brown-red-black (d) white-red-brown
  19. 19.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-orange (b) violet-yellow-brown (c) yellow-violet-red (d) violet-yellow-red
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-brown (b) red-brown-black (c) red-brown-red (d) brown-red-brown
  27. 27.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-brown (b) grey-white-red (c) white-grey-red (d) white-grey-orange
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) brown-violet-brown (b) violet-brown-brown (c) violet-brown-red (d) violet-brown-black
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 620 Ω resistor? (a) blue-red-black (b) blue-red-brown (c) red-blue-brown (d) blue-red-red
  33. 33.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-brown (b) yellow-orange-black (c) orange-black-black (d) yellow-black-black
  35. 35.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-red (b) yellow-yellow-orange (c) yellow-yellow-yellow (d) yellow-green-orange
  37. 37.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-black (b) red-orange-brown (c) red-red-red (d) red-red-brown
  39. 39.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 200
  2. 5 %
  3. the one nearest an end
  4. 3
  5. 2.6
  6. 8
  7. 40000
  8. 6.2
  9. blue-brown-orange
  10. 5.3
  11. green-red-black
  12. 410
  13. white-green-brown
  14. 2900
  15. 2.1
  16. 4
  17. grey-orange-orange
  18. white-red-black
  19. 11
  20. violet-yellow-red
  21. 5
  22. 9
  23. 1
  24. 14
  25. 7.3
  26. red-brown-brown
  27. 95000
  28. 2.4
  29. 300
  30. white-grey-red
  31. violet-brown-brown
  32. blue-red-brown
  33. 58
  34. orange-black-black
  35. 2800
  36. yellow-yellow-orange
  37. 39
  38. red-red-brown
  39. 61000
  40. 80

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