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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 263 · 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 orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  4. 4.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does grey stand for?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  9. 9.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) white-yellow-black (b) white-yellow-brown (c) white-yellow-red (d) yellow-white-brown
  11. 11.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) violet-yellow-brown (b) violet-yellow-red (c) violet-yellow-black (d) yellow-violet-brown
  22. 22.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) brown-grey-red (b) grey-brown-brown (c) grey-brown-red (d) grey-brown-orange
  24. 24.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does violet stand for?
  27. 27.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does white stand for?
  29. 29.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) red-yellow-brown (b) red-yellow-red (c) yellow-red-brown (d) red-yellow-black
  32. 32.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) yellow-orange-brown (c) orange-black-brown (d) orange-black-red
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-black (b) yellow-blue-brown (c) blue-yellow-red (d) blue-yellow-brown
  39. 39.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 390
  2. 9.5
  3. the one nearest an end
  4. 580
  5. 0
  6. 1.8
  7. 8
  8. 5 %
  9. 35000
  10. white-yellow-brown
  11. 5.4
  12. 3000
  13. 240
  14. 6500
  15. 1.7
  16. 4
  17. 670
  18. 250
  19. 2
  20. 43
  21. violet-yellow-brown
  22. 4.1
  23. grey-brown-red
  24. 55
  25. 6.9
  26. 7
  27. 8.8
  28. 9
  29. 5300
  30. 840
  31. red-yellow-brown
  32. 9.1
  33. 29
  34. 80
  35. orange-black-brown
  36. 1
  37. 60
  38. blue-yellow-brown
  39. 240
  40. 66

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