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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 54 · 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.🌈 In the resistor colour code, which number does brown stand for?
  2. 2.🌈 A resistor has the colour bands violet, red, yellow. 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 violet stand for?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  6. 6.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-red (b) red-orange-brown (c) orange-red-red (d) red-orange-orange
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  13. 13.🌈 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
  14. 14.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) red-orange-brown (b) orange-red-brown (c) red-orange-red (d) red-orange-black
  21. 21.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) yellow-red-black (b) yellow-red-brown (c) yellow-red-red (d) red-yellow-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-black (b) red-brown-black (c) brown-red-brown (d) red-red-black
  25. 25.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-black (b) grey-brown-black (c) red-grey-black (d) brown-grey-brown
  28. 28.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) blue-green-red (b) green-blue-brown (c) green-blue-red (d) green-blue-orange
  30. 30.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-red (b) red-yellow-brown (c) red-yellow-orange (d) yellow-red-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75000 Ω resistor? (a) violet-green-yellow (b) violet-green-red (c) violet-green-orange (d) green-violet-orange
  35. 35.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-brown (b) blue-blue-red (c) blue-blue-black (d) blue-violet-brown
  37. 37.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?

Answer key

  1. 1
  2. 720
  3. 2
  4. 7
  5. 5 %
  6. 35
  7. 640
  8. 50
  9. 0
  10. red-orange-red
  11. 9
  12. 79000
  13. the one nearest an end
  14. 59000
  15. 6
  16. 4100
  17. 230
  18. 190
  19. 71
  20. red-orange-brown
  21. 850
  22. 440
  23. yellow-red-brown
  24. brown-red-black
  25. 170
  26. 23
  27. brown-grey-black
  28. 86
  29. green-blue-red
  30. 11
  31. 43
  32. 39
  33. red-yellow-red
  34. violet-green-orange
  35. 3.1
  36. blue-blue-brown
  37. 66
  38. 4
  39. 42
  40. 23000

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