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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 268 · 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 22000 Ω resistor? (a) red-red-orange (b) red-red-yellow (c) red-orange-orange (d) red-red-red
  2. 2.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) red-orange-orange (c) orange-red-orange (d) orange-red-red
  5. 5.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  8. 8.🌈 In the resistor colour code, which number does white stand for?
  9. 9.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) blue-grey-black (c) grey-green-black (d) green-grey-black
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) yellow-white-black (b) white-yellow-black (c) brown-yellow-black (d) white-yellow-brown
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) blue-red-orange (b) blue-red-brown (c) blue-red-red (d) red-blue-red
  14. 14.🌈 In the resistor colour code, which number does red stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) red-grey-black (b) grey-red-brown (c) white-red-black (d) grey-red-black
  16. 16.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-red (b) yellow-green-orange (c) yellow-yellow-yellow (d) yellow-yellow-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) violet-red-black (b) violet-red-red (c) violet-red-brown (d) red-violet-brown
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) white-grey-black (c) white-grey-brown (d) brown-grey-black
  20. 20.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-red (b) white-blue-brown (c) white-blue-black (d) blue-white-brown
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-brown (b) green-blue-black (c) violet-green-black (d) blue-green-black
  24. 24.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-grey-orange (b) grey-grey-brown (c) grey-white-red (d) grey-grey-red
  31. 31.🌈 In the resistor colour code, which number does yellow stand for?
  32. 32.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-yellow (b) brown-red-orange (c) red-brown-orange (d) red-brown-red
  35. 35.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-brown (b) white-brown-black (c) brown-brown-black (d) brown-white-black
  38. 38.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does violet stand for?

Answer key

  1. red-red-orange
  2. 950
  3. 10
  4. orange-red-orange
  5. 450
  6. 2800
  7. 5 %
  8. 9
  9. the one nearest an end
  10. green-grey-black
  11. white-yellow-black
  12. 6
  13. blue-red-red
  14. 2
  15. grey-red-black
  16. 51
  17. yellow-yellow-orange
  18. violet-red-brown
  19. white-grey-black
  20. 110
  21. 960
  22. white-blue-brown
  23. blue-green-black
  24. 73
  25. 12000
  26. 5800
  27. 150
  28. 3
  29. 29
  30. grey-grey-red
  31. 4
  32. 54
  33. 5.4
  34. red-brown-orange
  35. 950
  36. 810
  37. white-brown-black
  38. 900
  39. 260
  40. 7

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