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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 886 · 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 blue stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-red (b) yellow-green-brown (c) green-yellow-red (d) yellow-green-orange
  3. 3.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-black (c) green-grey-black (d) yellow-grey-black
  6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) blue-black-black (b) blue-green-black (c) green-black-black (d) green-black-brown
  8. 8.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 In the resistor colour code, which number does orange stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) white-orange-red (b) white-orange-brown (c) white-orange-black (d) orange-white-brown
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) blue-red-brown (b) red-blue-red (c) red-blue-black (d) red-blue-brown
  17. 17.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  22. 22.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  23. 23.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does grey stand for?
  26. 26.🌈 In the resistor colour code, which number does violet stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) orange-white-orange (c) white-orange-orange (d) white-orange-yellow
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-red (b) orange-white-black (c) orange-white-brown (d) white-orange-brown
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) yellow-black-black (c) yellow-black-brown (d) green-black-black
  30. 30.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) orange-grey-orange (b) grey-orange-red (c) grey-orange-orange (d) grey-orange-yellow

Answer key

  1. 6
  2. yellow-green-red
  3. 89000
  4. 83
  5. yellow-grey-black
  6. the one nearest an end
  7. green-black-black
  8. 9100
  9. 0
  10. 4
  11. 6.6
  12. 2
  13. 3
  14. white-orange-brown
  15. 5
  16. red-blue-brown
  17. 9.7
  18. 8100
  19. 28
  20. 90
  21. 79000
  22. 5 %
  23. 2.9
  24. 3.8
  25. 8
  26. 7
  27. white-orange-orange
  28. orange-white-brown
  29. yellow-black-black
  30. 33
  31. 53
  32. 31000
  33. 760
  34. 24
  35. 95000
  36. 9.9
  37. 620
  38. 3
  39. 690
  40. grey-orange-orange

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