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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 799 · 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.

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  1. 1.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) red-brown-orange (b) brown-red-orange (c) brown-red-yellow (d) brown-red-red
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) violet-red-brown (b) violet-red-black (c) red-violet-black (d) grey-red-black
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) yellow-brown-red (b) brown-yellow-brown (c) brown-yellow-orange (d) brown-yellow-red
  14. 14.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-red (c) blue-yellow-red (d) blue-yellow-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) white-orange-black (b) grey-orange-black (c) orange-grey-black (d) grey-orange-brown
  18. 18.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) brown-grey-black (b) white-grey-black (c) grey-white-black (d) white-grey-brown
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) orange-grey-brown (b) orange-grey-black (c) grey-orange-black (d) yellow-grey-black
  21. 21.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does violet stand for?
  23. 23.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-orange (b) orange-green-red (c) green-orange-brown (d) green-orange-red
  26. 26.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) green-orange-black (b) yellow-green-black (c) orange-green-black (d) orange-green-brown
  29. 29.🌈 In the resistor colour code, which number does black stand for?
  30. 30.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) red-grey-black (b) grey-red-brown (c) white-red-black (d) grey-red-black
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89 Ω resistor? (a) grey-white-black (b) white-white-black (c) white-grey-black (d) grey-white-brown
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) blue-brown-brown (b) violet-brown-black (c) blue-brown-black (d) brown-blue-black
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?

Answer key

  1. brown-red-orange
  2. 5 %
  3. the one nearest an end
  4. 9
  5. 780
  6. 79
  7. 2
  8. 9700
  9. violet-red-black
  10. 5
  11. 9.2
  12. 66
  13. brown-yellow-red
  14. 5500
  15. 8
  16. blue-yellow-red
  17. grey-orange-black
  18. 510
  19. white-grey-black
  20. orange-grey-black
  21. 93
  22. 7
  23. 7.2
  24. 52
  25. green-orange-red
  26. 58
  27. 2.5
  28. orange-green-black
  29. 0
  30. 1.6
  31. 61000
  32. 16
  33. grey-red-black
  34. grey-white-black
  35. blue-brown-black
  36. 1
  37. 690
  38. 8100
  39. 890
  40. 930

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