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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 821 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-yellow (b) blue-yellow-orange (c) yellow-blue-red (d) yellow-blue-orange
  2. 2.🌈 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
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 In the resistor colour code, which number does grey stand for?
  6. 6.🌈 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
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-red (c) orange-yellow-red (d) orange-yellow-brown
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) yellow-orange-brown (b) yellow-orange-orange (c) yellow-orange-red (d) orange-yellow-red
  13. 13.🌈 In the resistor colour code, which number does violet stand for?
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-red (b) yellow-white-orange (c) white-yellow-red (d) yellow-white-brown
  20. 20.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) yellow-black-brown (c) green-black-black (d) yellow-black-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-red (b) violet-brown-orange (c) violet-brown-yellow (d) brown-violet-orange
  26. 26.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) blue-brown-red (b) blue-brown-yellow (c) brown-blue-orange (d) blue-brown-orange
  36. 36.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) white-black-brown (b) brown-white-black (c) white-black-black (d) brown-black-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-black (b) brown-grey-red (c) brown-grey-brown (d) grey-brown-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-orange (b) brown-white-red (c) white-brown-red (d) white-brown-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) violet-orange-brown (b) grey-orange-black (c) orange-violet-black (d) violet-orange-black

Answer key

  1. yellow-blue-orange
  2. the one nearest an end
  3. 5 %
  4. 4
  5. 8
  6. red-white-black
  7. 9
  8. 150
  9. 6
  10. orange-yellow-red
  11. 6
  12. yellow-orange-red
  13. 7
  14. 0
  15. 5
  16. 3700
  17. 170
  18. 9100
  19. yellow-white-red
  20. 51
  21. 2.9
  22. 35000
  23. 240
  24. yellow-black-black
  25. violet-brown-orange
  26. 1700
  27. 44
  28. 980
  29. 22
  30. 300
  31. 2.4
  32. 31
  33. 340
  34. 65
  35. blue-brown-orange
  36. 8
  37. white-black-black
  38. brown-grey-brown
  39. white-brown-red
  40. violet-orange-black

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