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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 917 · 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 96000 Ω resistor? (a) white-blue-yellow (b) blue-white-orange (c) white-blue-orange (d) white-blue-red
  2. 2.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  4. 4.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  6. 6.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) violet-grey-brown (b) grey-violet-black (c) violet-grey-black (d) grey-grey-black
  8. 8.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) brown-blue-brown (b) brown-blue-red (c) blue-brown-brown (d) brown-blue-black
  13. 13.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-orange (b) red-black-red (c) orange-red-orange (d) red-black-yellow
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) grey-white-black (b) violet-white-black (c) white-violet-black (d) violet-white-brown
  19. 19.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) red-blue-brown (b) red-blue-black (c) orange-blue-black (d) blue-red-black
  22. 22.🌈 In the resistor colour code, which number does grey stand for?
  23. 23.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-black (b) yellow-black-brown (c) green-black-black (d) green-yellow-black
  25. 25.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) blue-orange-red (b) blue-orange-brown (c) blue-orange-orange (d) orange-blue-red
  29. 29.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does green stand for?
  31. 31.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-red (b) violet-black-yellow (c) grey-violet-orange (d) violet-black-orange
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77000 Ω resistor? (a) violet-violet-orange (b) violet-violet-yellow (c) violet-violet-red (d) violet-grey-orange
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-black (b) white-red-brown (c) white-red-red (d) red-white-brown
  36. 36.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8700 Ω resistor? (a) violet-grey-red (b) grey-violet-brown (c) grey-violet-orange (d) grey-violet-red
  38. 38.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-black (b) violet-brown-brown (c) violet-brown-red (d) brown-violet-brown

Answer key

  1. white-blue-orange
  2. 390
  3. 5 %
  4. 70
  5. the one nearest an end
  6. 130
  7. violet-grey-black
  8. 12000
  9. 4
  10. 19
  11. 7
  12. brown-blue-brown
  13. 8.6
  14. red-black-orange
  15. 0
  16. 290
  17. 86000
  18. violet-white-black
  19. 8.7
  20. 62
  21. red-blue-black
  22. 8
  23. 1.9
  24. yellow-black-black
  25. 6000
  26. 3
  27. 870
  28. blue-orange-red
  29. 400
  30. 5
  31. 580
  32. violet-black-orange
  33. violet-violet-orange
  34. 9
  35. white-red-brown
  36. 210
  37. grey-violet-red
  38. 260
  39. 110
  40. violet-brown-brown

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