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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 14 · 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 grey, violet, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) orange-blue-black (b) blue-orange-brown (c) violet-orange-black (d) blue-orange-black
  11. 11.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-brown (b) grey-brown-brown (c) brown-grey-red (d) brown-grey-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-red (b) grey-red-orange (c) grey-red-brown (d) red-grey-red
  14. 14.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) grey-green-black (b) green-violet-black (c) violet-green-brown (d) violet-green-black
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does blue stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-black (b) green-red-brown (c) green-red-red (d) red-green-brown
  22. 22.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-yellow (b) white-brown-red (c) brown-white-orange (d) white-brown-orange
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-red (b) red-violet-orange (c) red-violet-yellow (d) violet-red-orange
  28. 28.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does white stand for?
  30. 30.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does grey stand for?
  33. 33.🌈 In the resistor colour code, which number does violet stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) green-brown-black (b) brown-green-brown (c) brown-green-black (d) red-green-black
  35. 35.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?

Answer key

  1. 87000
  2. 12
  3. 92000
  4. 58000
  5. 79
  6. 63
  7. 9900
  8. the one nearest an end
  9. 5 %
  10. blue-orange-black
  11. 62
  12. brown-grey-brown
  13. grey-red-red
  14. 2800
  15. 10
  16. 32
  17. violet-green-black
  18. 4
  19. 89000
  20. 6
  21. green-red-brown
  22. 890
  23. 3.6
  24. 1
  25. white-brown-orange
  26. 2
  27. red-violet-orange
  28. 8600
  29. 9
  30. 7.1
  31. 6000
  32. 8
  33. 7
  34. brown-green-black
  35. 9.4
  36. 10000
  37. 8.1
  38. 6.1
  39. 3900
  40. 12

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