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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 826 · 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 band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-brown (b) green-white-red (c) white-green-brown (d) green-white-black
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-brown (b) blue-brown-red (c) brown-blue-red (d) blue-brown-orange
  6. 6.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-brown (b) brown-black-orange (c) brown-black-red (d) red-brown-red
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-red (b) white-white-orange (c) white-white-brown (d) white-black-red
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-orange (b) violet-white-orange (c) white-violet-red (d) white-violet-yellow
  12. 12.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-brown (c) brown-blue-red (d) brown-blue-orange
  20. 20.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does red stand for?
  22. 22.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does grey stand for?
  24. 24.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does green stand for?
  28. 28.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) violet-orange-black (b) orange-blue-black (c) blue-orange-brown (d) blue-orange-black
  30. 30.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-black (b) grey-green-brown (c) green-grey-red (d) green-grey-brown
  32. 32.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-black (b) brown-brown-brown (c) brown-red-black (d) red-brown-black
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-black-black (b) brown-white-black (c) white-white-brown (d) white-white-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) orange-red-orange (b) red-orange-red (c) red-orange-yellow (d) red-orange-orange
  37. 37.🌈 In the resistor colour code, which number does yellow stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) yellow-red-red (b) red-yellow-orange (c) red-yellow-brown (d) red-yellow-red
  39. 39.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5 %
  3. 3
  4. green-white-brown
  5. blue-brown-red
  6. 700
  7. brown-black-red
  8. 7
  9. white-white-red
  10. 6
  11. white-violet-orange
  12. 16
  13. 6.8
  14. 60
  15. 20
  16. 300
  17. 360
  18. 2400
  19. brown-blue-red
  20. 96000
  21. 2
  22. 38
  23. 8
  24. 39
  25. 33
  26. 2.7
  27. 5
  28. 530
  29. blue-orange-black
  30. 2600
  31. green-grey-brown
  32. 4.1
  33. 670
  34. brown-brown-black
  35. white-white-black
  36. red-orange-orange
  37. 4
  38. red-yellow-red
  39. 84
  40. 7.6

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