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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 285 · 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 colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-red (b) red-grey-orange (c) grey-red-orange (d) grey-red-yellow
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) blue-green-red (b) green-black-red (c) green-black-orange (d) green-black-brown
  12. 12.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-yellow (b) yellow-blue-orange (c) blue-yellow-orange (d) blue-yellow-red
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) violet-orange-red (b) orange-violet-orange (c) violet-orange-orange (d) violet-orange-yellow
  15. 15.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  17. 17.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-orange (b) orange-grey-red (c) orange-grey-brown (d) grey-orange-red
  19. 19.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-red (b) blue-green-brown (c) green-blue-red (d) blue-green-orange
  23. 23.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-black (b) orange-black-black (c) orange-red-black (d) red-black-brown
  26. 26.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) red-black-orange (c) red-black-brown (d) orange-red-red
  32. 32.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, yellow, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. grey-red-orange
  2. 5 %
  3. 620
  4. 1
  5. 640
  6. 50
  7. 72
  8. 62
  9. 42
  10. 9
  11. green-black-red
  12. 30
  13. blue-yellow-orange
  14. violet-orange-orange
  15. 430
  16. the one nearest an end
  17. 160
  18. orange-grey-red
  19. 20
  20. 8900
  21. 7
  22. blue-green-red
  23. 39
  24. 23
  25. red-black-black
  26. 43
  27. 32
  28. 34000
  29. 86
  30. 600
  31. red-black-red
  32. 52
  33. 940
  34. 41000
  35. 2
  36. 55
  37. 8
  38. 27
  39. 8400
  40. 230

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