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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 379 · 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 widest gap (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-red (b) violet-black-orange (c) violet-black-yellow (d) grey-violet-orange
  10. 10.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-yellow (b) red-violet-orange (c) violet-red-red (d) violet-red-orange
  16. 16.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) yellow-blue-orange (b) yellow-blue-red (c) blue-yellow-red (d) yellow-blue-brown
  18. 18.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-brown (b) white-yellow-orange (c) yellow-white-red (d) white-yellow-red
  26. 26.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) yellow-blue-brown (b) blue-yellow-black (c) blue-yellow-red (d) blue-yellow-brown
  29. 29.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-black (b) blue-brown-black (c) green-brown-brown (d) brown-green-black
  32. 32.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does yellow stand for?
  34. 34.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does red stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-red (b) orange-green-orange (c) green-orange-orange (d) orange-green-yellow
  39. 39.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 92
  3. 950
  4. 8.3
  5. 5 %
  6. 5
  7. 14000
  8. 14
  9. violet-black-orange
  10. 25
  11. 0
  12. 21
  13. 1.5
  14. 3
  15. violet-red-orange
  16. 220
  17. yellow-blue-red
  18. 76
  19. 42
  20. 36
  21. 8900
  22. 9
  23. 84000
  24. 16
  25. white-yellow-red
  26. 980
  27. 12
  28. blue-yellow-brown
  29. 4400
  30. 71
  31. green-brown-black
  32. 53
  33. 4
  34. 690
  35. 98
  36. 860
  37. 2
  38. orange-green-orange
  39. 3900
  40. 57

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