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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 561 · 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.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-red (b) grey-brown-red (c) brown-grey-orange (d) brown-grey-brown
  3. 3.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-orange (b) brown-green-yellow (c) green-brown-orange (d) brown-green-red
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) green-brown-black (b) yellow-brown-brown (c) brown-yellow-black (d) yellow-brown-black
  12. 12.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-red-brown (b) brown-brown-brown (c) brown-brown-red (d) brown-brown-black
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-orange (b) blue-black-yellow (c) violet-blue-orange (d) blue-black-red
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-red (b) red-red-black (c) red-red-brown (d) red-orange-brown
  18. 18.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-white-brown (b) grey-grey-red (c) grey-grey-brown (d) grey-grey-black
  20. 20.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-orange (b) orange-white-brown (c) orange-white-red (d) white-orange-red
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  26. 26.🌈 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
  27. 27.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) blue-red-red (b) red-blue-red (c) red-blue-orange (d) red-blue-brown
  31. 31.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-red (b) green-white-brown (c) white-green-red (d) green-white-orange
  34. 34.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-brown (b) orange-red-black (c) orange-black-black (d) red-black-black
  37. 37.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does grey stand for?
  39. 39.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) orange-red-black (c) red-orange-brown (d) red-orange-black

Answer key

  1. 18
  2. brown-grey-red
  3. 59
  4. 9.3
  5. 550
  6. 1.6
  7. brown-green-orange
  8. 2
  9. 5 %
  10. 6
  11. yellow-brown-black
  12. 75
  13. brown-brown-brown
  14. 4
  15. 5
  16. blue-black-orange
  17. red-red-brown
  18. 1900
  19. grey-grey-brown
  20. 7400
  21. orange-white-red
  22. 1
  23. 43
  24. 19000
  25. 62
  26. the one nearest an end
  27. 50
  28. 680
  29. 19
  30. red-blue-red
  31. 90000
  32. 88
  33. green-white-red
  34. 94000
  35. 580
  36. red-black-black
  37. 5.3
  38. 8
  39. 73000
  40. red-orange-black

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