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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 340 · 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 green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-red (c) yellow-brown-orange (d) brown-yellow-red
  3. 3.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does blue stand for?
  6. 6.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  9. 9.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) grey-violet-black (b) grey-violet-brown (c) grey-violet-red (d) violet-grey-brown
  20. 20.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 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
  22. 22.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) blue-white-black (b) green-white-black (c) green-white-brown (d) white-green-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) blue-grey-black (b) white-blue-black (c) grey-blue-brown (d) grey-blue-black
  26. 26.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-orange (b) violet-black-brown (c) violet-black-red (d) grey-violet-red
  28. 28.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-yellow (c) blue-yellow-red (d) yellow-blue-orange
  32. 32.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87 Ω resistor? (a) white-violet-black (b) grey-violet-black (c) violet-grey-black (d) grey-violet-brown
  34. 34.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-brown (c) brown-blue-black (d) brown-blue-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-red (b) violet-orange-red (c) orange-violet-orange (d) orange-violet-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) orange-red-brown (b) red-orange-black (c) red-orange-brown (d) red-orange-red
  39. 39.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does yellow stand for?

Answer key

  1. 57
  2. yellow-brown-red
  3. 3.1
  4. 6500
  5. 6
  6. 3400
  7. 80
  8. 5 %
  9. 220
  10. 89
  11. 3
  12. 8
  13. 2
  14. 2.9
  15. 13000
  16. 100
  17. 9
  18. 31
  19. grey-violet-brown
  20. 89
  21. the one nearest an end
  22. 9000
  23. 22
  24. green-white-black
  25. grey-blue-black
  26. 75
  27. violet-black-red
  28. 31000
  29. 28
  30. 590
  31. blue-yellow-orange
  32. 95
  33. grey-violet-black
  34. 5.8
  35. 6.2
  36. brown-blue-brown
  37. orange-violet-red
  38. red-orange-brown
  39. 53
  40. 4

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