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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 955 · 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 yellow, red, red. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  4. 4.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) green-orange-black (b) green-orange-brown (c) orange-green-black (d) blue-orange-black
  8. 8.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) orange-black-brown (c) yellow-orange-brown (d) orange-black-red
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-brown (b) brown-orange-orange (c) orange-brown-red (d) brown-orange-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) green-yellow-orange (b) yellow-black-red (c) yellow-black-yellow (d) yellow-black-orange
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) grey-green-brown (b) green-grey-red (c) green-grey-brown (d) green-grey-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-brown (b) red-brown-red (c) red-brown-orange (d) brown-red-red
  19. 19.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 620 Ω resistor? (a) blue-red-red (b) red-blue-brown (c) blue-red-black (d) blue-red-brown
  26. 26.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-brown-brown (d) red-brown-red
  32. 32.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-orange (b) white-brown-yellow (c) white-brown-red (d) brown-white-orange
  34. 34.🌈 In the resistor colour code, which number does orange stand for?
  35. 35.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-black (b) yellow-blue-brown (c) blue-yellow-black (d) green-blue-black

Answer key

  1. 4200
  2. the one nearest an end
  3. 5 %
  4. 230
  5. 7
  6. 87
  7. green-orange-black
  8. 640
  9. 83
  10. orange-black-brown
  11. 1
  12. 940
  13. 8
  14. brown-orange-red
  15. yellow-black-orange
  16. 4
  17. green-grey-brown
  18. red-brown-red
  19. 890
  20. 700
  21. 79
  22. 150
  23. 71
  24. 2
  25. blue-red-brown
  26. 380
  27. 7
  28. 8.4
  29. 3900
  30. 890
  31. red-brown-brown
  32. 580
  33. white-brown-orange
  34. 3
  35. 36
  36. 320
  37. 980
  38. 9
  39. 650
  40. yellow-blue-black

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