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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 178 · 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) 5 % (c) 0 % (d) 25 %
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does red stand for?
  5. 5.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-orange (b) violet-blue-red (c) violet-blue-brown (d) blue-violet-red
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  16. 16.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  17. 17.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does orange stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-orange (b) orange-yellow-orange (c) orange-orange-yellow (d) orange-orange-red
  20. 20.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-orange (b) red-orange-red (c) red-orange-brown (d) orange-red-red
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-red (b) yellow-brown-orange (c) yellow-brown-brown (d) brown-yellow-red
  27. 27.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-orange (b) green-brown-yellow (c) brown-green-orange (d) green-brown-red
  30. 30.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) brown-red-orange (b) red-brown-red (c) red-brown-yellow (d) red-brown-orange
  33. 33.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-brown (b) yellow-brown-black (c) orange-brown-black (d) brown-orange-black

Answer key

  1. 5 %
  2. 5
  3. 5000
  4. 2
  5. 820
  6. 51000
  7. 4
  8. 830
  9. violet-blue-red
  10. 7
  11. 8700
  12. 630
  13. 91
  14. 25
  15. 510
  16. the one nearest an end
  17. 24000
  18. 3
  19. orange-orange-orange
  20. 60
  21. 7.4
  22. red-orange-red
  23. 1
  24. 84
  25. 42
  26. yellow-brown-red
  27. 590
  28. 0
  29. green-brown-orange
  30. 86
  31. 31
  32. red-brown-orange
  33. 620
  34. 30
  35. 2.6
  36. 310
  37. 21000
  38. 260
  39. 6.6
  40. orange-brown-black

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