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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 995 · 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 orange stand for?
  2. 2.🌈 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
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-brown (b) grey-yellow-red (c) yellow-grey-brown (d) grey-yellow-black
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-brown (b) orange-blue-black (c) blue-orange-brown (d) orange-blue-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) white-yellow-brown (b) yellow-white-brown (c) yellow-white-black (d) yellow-white-red
  9. 9.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  11. 11.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) orange-red-orange (c) red-orange-orange (d) orange-red-red
  16. 16.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) green-white-brown (b) white-green-red (c) white-green-black (d) white-green-brown
  19. 19.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) white-blue-black (b) grey-blue-brown (c) blue-grey-black (d) grey-blue-black
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) green-orange-black (b) yellow-orange-brown (c) orange-yellow-black (d) yellow-orange-black
  22. 22.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) blue-red-orange (b) red-blue-yellow (c) red-blue-orange (d) red-blue-red
  26. 26.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) grey-brown-brown (b) white-brown-black (c) grey-brown-black (d) brown-grey-black
  28. 28.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-yellow (b) white-blue-orange (c) blue-white-orange (d) blue-white-red
  32. 32.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) green-violet-black (b) yellow-violet-black (c) yellow-violet-brown (d) violet-yellow-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) green-yellow-brown (b) yellow-green-black (c) yellow-green-red (d) yellow-green-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-brown (b) red-blue-black (c) violet-red-black (d) blue-red-black
  40. 40.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 3
  2. the one nearest an end
  3. 0
  4. 900
  5. grey-yellow-brown
  6. 5
  7. orange-blue-brown
  8. yellow-white-brown
  9. 95
  10. 5 %
  11. 62
  12. 2
  13. 240
  14. 8
  15. orange-red-orange
  16. 48000
  17. 1
  18. white-green-brown
  19. 43
  20. grey-blue-black
  21. yellow-orange-black
  22. 84
  23. 3.9
  24. 4
  25. red-blue-orange
  26. 4200
  27. grey-brown-black
  28. 680
  29. 9.1
  30. 59
  31. blue-white-orange
  32. 7
  33. 40
  34. 980
  35. 9
  36. 5.8
  37. yellow-violet-black
  38. yellow-green-brown
  39. blue-red-black
  40. 760

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