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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 104 · 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 red stand for?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  3. 3.🌈 In the resistor colour code, which number does blue stand for?
  4. 4.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-black (b) violet-black-black (c) blue-black-brown (d) violet-blue-black
  8. 8.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) grey-green-black (b) green-grey-brown (c) blue-grey-black (d) green-grey-black
  10. 10.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-black (b) grey-yellow-black (c) green-grey-black (d) yellow-grey-brown
  13. 13.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 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
  23. 23.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-blue-black (b) green-green-brown (c) blue-green-black (d) green-green-black
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) brown-yellow-red (b) brown-yellow-yellow (c) yellow-brown-orange (d) brown-yellow-orange
  27. 27.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-red (b) grey-yellow-brown (c) yellow-grey-brown (d) grey-yellow-black
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-black (b) green-green-red (c) green-green-brown (d) green-blue-brown
  34. 34.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does orange stand for?
  39. 39.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?

Answer key

  1. 2
  2. 5 %
  3. 6
  4. 32
  5. 68000
  6. 7
  7. blue-black-black
  8. 56
  9. green-grey-black
  10. 29
  11. 770
  12. yellow-grey-black
  13. 3.5
  14. 17
  15. 0
  16. 9.5
  17. 61000
  18. 620
  19. 3.2
  20. 64
  21. 66
  22. the one nearest an end
  23. 2600
  24. 8
  25. green-green-black
  26. brown-yellow-orange
  27. 26
  28. 1
  29. 42
  30. 890
  31. 9
  32. grey-yellow-brown
  33. green-green-brown
  34. 8600
  35. 86000
  36. 7.1
  37. 290
  38. 3
  39. 11000
  40. 26

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