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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 531 · 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) 5 % (b) 0 % (c) 50 % (d) 25 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-red (b) grey-orange-brown (c) orange-grey-black (d) orange-grey-brown
  3. 3.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) orange-grey-brown (b) grey-orange-brown (c) grey-orange-red (d) grey-orange-black
  6. 6.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-black (b) yellow-orange-brown (c) orange-yellow-brown (d) orange-yellow-red
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  10. 10.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does yellow stand for?
  12. 12.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does blue stand for?
  15. 15.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does white stand for?
  17. 17.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-black (b) brown-violet-red (c) brown-violet-brown (d) violet-brown-brown
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  21. 21.🌈 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
  22. 22.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  24. 24.🌈 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
  25. 25.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does red stand for?
  28. 28.🌈 In the resistor colour code, which number does green stand for?
  29. 29.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-brown (b) brown-red-black (c) white-red-black (d) red-white-black
  32. 32.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) red-violet-red (b) violet-red-orange (c) violet-red-red (d) violet-red-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-yellow (b) green-black-orange (c) green-black-red (d) blue-green-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) orange-violet-brown (b) violet-orange-brown (c) violet-orange-black (d) violet-orange-red
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) blue-yellow-black (b) yellow-blue-black (c) green-blue-black (d) yellow-blue-brown

Answer key

  1. 5 %
  2. orange-grey-brown
  3. 4.1
  4. 27
  5. grey-orange-brown
  6. 500
  7. orange-yellow-brown
  8. 0
  9. the one nearest an end
  10. 120
  11. 4
  12. 11
  13. 830
  14. 6
  15. 91
  16. 9
  17. 81
  18. brown-violet-brown
  19. 3
  20. 66000
  21. orange-orange-black
  22. 370
  23. 540
  24. blue-red-red
  25. 5.6
  26. 54000
  27. 2
  28. 5
  29. 8.3
  30. 41
  31. white-red-black
  32. 2.2
  33. 3700
  34. 35
  35. 580
  36. 85
  37. violet-red-red
  38. green-black-orange
  39. violet-orange-brown
  40. yellow-blue-black

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