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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 652 · 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 a 35000 Ω resistor? (a) orange-green-orange (b) green-orange-orange (c) orange-green-yellow (d) orange-green-red
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 In the resistor colour code, which number does blue stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) red-black-red (c) orange-red-brown (d) red-black-brown
  5. 5.🌈 In the resistor colour code, which number does red stand for?
  6. 6.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) grey-blue-red (b) blue-grey-red (c) blue-grey-brown (d) blue-grey-orange
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-brown (b) red-blue-orange (c) red-blue-red (d) blue-red-red
  11. 11.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  13. 13.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-yellow (b) green-violet-red (c) violet-green-orange (d) green-violet-orange
  15. 15.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98000 Ω resistor? (a) white-grey-red (b) white-grey-yellow (c) grey-white-orange (d) white-grey-orange
  21. 21.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) green-blue-black (b) blue-yellow-black (c) yellow-blue-black (d) yellow-blue-brown
  24. 24.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-orange (b) grey-brown-red (c) brown-grey-red (d) grey-brown-brown
  27. 27.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-brown (b) brown-grey-black (c) white-grey-black (d) grey-white-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) green-black-black (b) green-black-brown (c) blue-green-black (d) blue-black-black
  38. 38.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-yellow (b) green-blue-orange (c) green-green-orange (d) green-green-red
  40. 40.🌈 In the resistor colour code, which number does white stand for?

Answer key

  1. orange-green-orange
  2. 0
  3. 6
  4. red-black-brown
  5. 2
  6. 470
  7. 100
  8. 800
  9. blue-grey-red
  10. red-blue-red
  11. 20000
  12. 5 %
  13. the one nearest an end
  14. green-violet-orange
  15. 6.4
  16. 23
  17. 5
  18. 1
  19. 9
  20. white-grey-orange
  21. 14
  22. 1400
  23. yellow-blue-black
  24. 2.1
  25. 60
  26. grey-brown-red
  27. 92000
  28. 26
  29. 3100
  30. 26
  31. 50
  32. 310
  33. 55
  34. 95
  35. 430
  36. white-grey-black
  37. green-black-black
  38. 50000
  39. green-green-orange
  40. 9

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