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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 530 · 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 grey, violet, 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) 0 % (b) 5 % (c) 50 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  9. 9.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-yellow (b) violet-brown-red (c) brown-violet-orange (d) violet-brown-orange
  13. 13.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-brown (b) red-white-orange (c) red-white-red (d) white-red-red
  15. 15.🌈 In the resistor colour code, which number does brown stand for?
  16. 16.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-yellow (b) green-red-red (c) green-red-orange (d) red-green-orange
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) orange-blue-brown (c) orange-blue-red (d) blue-orange-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) grey-green-orange (b) green-grey-red (c) grey-green-red (d) grey-green-brown
  21. 21.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) grey-yellow-orange (b) yellow-grey-yellow (c) yellow-grey-red (d) yellow-grey-orange
  26. 26.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) grey-yellow-brown (b) yellow-grey-brown (c) yellow-grey-black (d) yellow-grey-red
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-black (b) green-grey-brown (c) grey-green-black (d) blue-grey-black
  32. 32.🌈 In the resistor colour code, which number does grey stand for?
  33. 33.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-black (b) blue-yellow-brown (c) yellow-blue-brown (d) blue-yellow-red
  36. 36.🌈 In the resistor colour code, which number does white stand for?
  37. 37.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?

Answer key

  1. 870
  2. 5 %
  3. 62000
  4. 63
  5. 910
  6. 23000
  7. 96
  8. the one nearest an end
  9. 6100
  10. 9600
  11. 7
  12. violet-brown-orange
  13. 4.3
  14. red-white-red
  15. 1
  16. 5.2
  17. 2
  18. green-red-orange
  19. orange-blue-red
  20. grey-green-red
  21. 420
  22. 2200
  23. 6
  24. 100
  25. yellow-grey-orange
  26. 56
  27. 59
  28. 290
  29. yellow-grey-brown
  30. 4
  31. green-grey-black
  32. 8
  33. 56
  34. 370
  35. blue-yellow-brown
  36. 9
  37. 890
  38. 4.7
  39. 480
  40. 22000

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