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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 367 · 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 740 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-brown (c) violet-yellow-black (d) violet-yellow-red
  2. 2.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 In the resistor colour code, which number does blue stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) red-orange-black (c) red-red-black (d) orange-red-black
  6. 6.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) brown-orange-orange (b) orange-brown-yellow (c) orange-brown-orange (d) orange-brown-red
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  11. 11.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  14. 14.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) red-blue-brown (b) blue-red-black (c) orange-blue-black (d) red-blue-black
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) red-white-red (b) white-red-orange (c) white-red-brown (d) white-red-red
  18. 18.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65000 Ω resistor? (a) blue-green-orange (b) green-blue-orange (c) blue-green-yellow (d) blue-green-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-brown (b) yellow-black-black (c) yellow-orange-black (d) orange-black-black
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) blue-red-orange (b) red-blue-orange (c) red-blue-yellow (d) red-blue-red
  25. 25.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) blue-white-red (b) white-blue-orange (c) white-blue-brown (d) white-blue-red
  28. 28.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-black (b) brown-violet-brown (c) violet-brown-red (d) violet-brown-brown
  32. 32.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-red (b) red-violet-orange (c) violet-red-yellow (d) violet-red-orange
  38. 38.🌈 In the resistor colour code, which number does green stand for?
  39. 39.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) red-green-brown (b) green-red-red (c) red-green-red (d) red-green-orange

Answer key

  1. violet-yellow-brown
  2. 4.2
  3. 2
  4. 6
  5. red-red-black
  6. 17
  7. orange-brown-orange
  8. 1
  9. 7
  10. 5 %
  11. 57
  12. 6.4
  13. the one nearest an end
  14. 260
  15. red-blue-black
  16. 4
  17. white-red-red
  18. 65
  19. 50
  20. 100
  21. 9
  22. blue-green-orange
  23. orange-black-black
  24. red-blue-orange
  25. 12
  26. 8.3
  27. white-blue-red
  28. 79
  29. 25000
  30. 7.8
  31. violet-brown-brown
  32. 3.7
  33. 86
  34. 460
  35. 720
  36. 8100
  37. violet-red-orange
  38. 5
  39. 510
  40. red-green-red

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