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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 159 · 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 brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-red (b) red-red-orange (c) red-orange-orange (d) red-red-yellow
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does grey stand for?
  10. 10.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-brown (b) green-blue-black (c) blue-yellow-black (d) yellow-blue-black
  12. 12.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-black (b) orange-violet-brown (c) violet-orange-black (d) yellow-violet-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) orange-red-brown (b) red-orange-black (c) yellow-red-black (d) orange-red-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) green-orange-brown (b) orange-green-black (c) orange-green-brown (d) orange-green-red
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-brown (b) orange-orange-orange (c) orange-orange-red (d) orange-yellow-red
  28. 28.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does blue stand for?
  32. 32.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) orange-red-black (c) red-red-black (d) red-orange-black
  36. 36.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, white, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-brown (c) red-brown-black (d) red-brown-red

Answer key

  1. 16
  2. the one nearest an end
  3. 5 %
  4. red-red-orange
  5. 0
  6. 450
  7. 2.1
  8. 26
  9. 8
  10. 89
  11. yellow-blue-black
  12. 8.9
  13. 33
  14. 5
  15. 8300
  16. 520
  17. 11
  18. orange-violet-black
  19. orange-red-black
  20. orange-green-brown
  21. 7
  22. 23
  23. 84
  24. 5.8
  25. 290
  26. 3
  27. orange-orange-red
  28. 5300
  29. 840
  30. 9800
  31. 6
  32. 57
  33. 72000
  34. 3900
  35. red-red-black
  36. 75
  37. 4900
  38. 200
  39. 8
  40. red-brown-brown

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