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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 794 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) brown-orange-brown (c) orange-brown-black (d) red-orange-black
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-black (b) white-grey-brown (c) grey-white-black (d) brown-grey-black
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  7. 7.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-yellow (b) green-brown-red (c) green-brown-orange (d) brown-green-orange
  9. 9.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 280 Ω resistor? (a) red-grey-red (b) red-grey-black (c) red-grey-brown (d) grey-red-brown
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-red (b) white-white-orange (c) white-white-brown (d) white-black-red
  14. 14.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) blue-brown-black (b) blue-brown-brown (c) brown-blue-black (d) violet-brown-black
  16. 16.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-black (b) grey-blue-brown (c) blue-grey-black (d) white-blue-black
  19. 19.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) red-yellow-black (b) yellow-red-black (c) orange-yellow-black (d) red-yellow-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) yellow-orange-black (c) orange-orange-black (d) orange-orange-brown
  29. 29.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-red (b) violet-red-yellow (c) red-violet-orange (d) violet-red-orange
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) grey-blue-brown (b) grey-blue-orange (c) grey-blue-red (d) blue-grey-red
  32. 32.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-white-black (b) grey-grey-brown (c) grey-grey-black (d) white-grey-black
  38. 38.🌈 In the resistor colour code, which number does black stand for?
  39. 39.🌈 In the resistor colour code, which number does grey stand for?
  40. 40.🌈 In the resistor colour code, which number does yellow stand for?

Answer key

  1. 5 %
  2. 1800
  3. 97
  4. brown-orange-black
  5. white-grey-black
  6. the one nearest an end
  7. 58
  8. green-brown-orange
  9. 79000
  10. 7
  11. 3200
  12. red-grey-brown
  13. white-white-red
  14. 540
  15. blue-brown-black
  16. 90
  17. 8300
  18. grey-blue-black
  19. 600
  20. 80000
  21. 6
  22. 140
  23. 2
  24. 33
  25. 32
  26. 340
  27. red-yellow-black
  28. orange-orange-black
  29. 37000
  30. violet-red-orange
  31. grey-blue-red
  32. 30000
  33. 90
  34. 15
  35. 63
  36. 860
  37. grey-grey-black
  38. 0
  39. 8
  40. 4

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