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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 354 · 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 blue, violet, black. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) white-red-black (b) red-white-black (c) orange-white-black (d) red-white-brown
  3. 3.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) brown-grey-black (c) white-grey-black (d) white-grey-brown
  9. 9.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does red stand for?
  12. 12.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does blue stand for?
  14. 14.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-brown (b) grey-yellow-black (c) grey-yellow-red (d) yellow-grey-brown
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) yellow-blue-black (b) blue-orange-black (c) orange-blue-black (d) orange-blue-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-blue-red (b) green-green-brown (c) green-green-red (d) green-green-orange
  28. 28.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-brown (b) red-yellow-black (c) yellow-brown-black (d) brown-yellow-black
  30. 30.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-brown (b) white-red-red (c) red-white-red (d) red-white-orange
  32. 32.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) red-brown-red (d) red-brown-brown
  34. 34.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does orange stand for?
  40. 40.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?

Answer key

  1. 67
  2. red-white-black
  3. 800
  4. 7
  5. 9
  6. the one nearest an end
  7. 5 %
  8. white-grey-black
  9. 510
  10. 4.2
  11. 2
  12. 93
  13. 6
  14. 3.6
  15. 8000
  16. 12000
  17. 42
  18. 10
  19. 32
  20. 940
  21. 860
  22. 3.3
  23. grey-yellow-brown
  24. 1
  25. 920
  26. orange-blue-black
  27. green-green-red
  28. 8.5
  29. brown-yellow-black
  30. 5900
  31. red-white-red
  32. 13
  33. red-brown-red
  34. 370
  35. 37
  36. 8600
  37. 85
  38. 9000
  39. 3
  40. 28000

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