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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 549 · 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 band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  2. 2.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  8. 8.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) violet-orange-red (b) orange-violet-orange (c) orange-violet-red (d) orange-violet-brown
  10. 10.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) brown-grey-black (b) grey-brown-black (c) grey-brown-brown (d) white-brown-black
  19. 19.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-brown (b) yellow-brown-black (c) brown-orange-black (d) orange-brown-black
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) orange-blue-red (c) blue-orange-red (d) orange-blue-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-black (b) yellow-black-brown (c) green-yellow-black (d) green-black-black
  23. 23.🌈 In the resistor colour code, which number does yellow stand for?
  24. 24.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) violet-green-orange (b) green-violet-red (c) green-violet-yellow (d) green-violet-orange
  32. 32.🌈 In the resistor colour code, which number does black stand for?
  33. 33.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-grey-orange (b) grey-grey-brown (c) grey-grey-red (d) grey-white-red
  37. 37.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-red (b) red-white-orange (c) white-red-orange (d) white-red-yellow
  40. 40.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 610
  3. 8.1
  4. 5
  5. 510
  6. 60
  7. 5 %
  8. 310
  9. orange-violet-red
  10. 340
  11. 50000
  12. 8
  13. 2
  14. 9
  15. 9.4
  16. 6600
  17. 940
  18. grey-brown-black
  19. 13000
  20. orange-brown-black
  21. orange-blue-red
  22. yellow-black-black
  23. 4
  24. 410
  25. 92
  26. 50
  27. 6
  28. 86
  29. 3
  30. 2.8
  31. green-violet-orange
  32. 0
  33. 6900
  34. 2
  35. 7
  36. grey-grey-red
  37. 2100
  38. 81
  39. white-red-orange
  40. 12

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