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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 23 · 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 gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-brown (b) orange-brown-black (c) orange-brown-red (d) brown-orange-brown
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) violet-orange-red (b) orange-violet-brown (c) violet-orange-brown (d) violet-orange-black
  4. 4.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  5. 5.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-orange (b) white-blue-red (c) white-blue-yellow (d) blue-white-orange
  9. 9.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) red-brown-orange (b) brown-black-red (c) brown-black-orange (d) brown-black-yellow
  11. 11.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) red-orange-brown (c) red-orange-black (d) orange-red-black
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) red-green-brown (b) red-green-black (c) green-red-black (d) orange-green-black
  18. 18.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-brown (b) green-blue-brown (c) green-green-black (d) green-green-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) violet-orange-orange (b) violet-orange-yellow (c) violet-orange-red (d) orange-violet-orange
  21. 21.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does green stand for?
  23. 23.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) orange-blue-red (b) blue-orange-brown (c) blue-orange-orange (d) blue-orange-red
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-orange (c) brown-black-red (d) brown-black-brown
  32. 32.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does blue stand for?
  36. 36.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-brown (b) green-orange-black (c) orange-green-black (d) yellow-green-black
  38. 38.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?

Answer key

  1. 5 %
  2. orange-brown-brown
  3. violet-orange-brown
  4. the one nearest an end
  5. 66
  6. 10000
  7. 610
  8. white-blue-orange
  9. 26
  10. brown-black-orange
  11. 67000
  12. 2
  13. 8
  14. 7
  15. 48
  16. red-orange-black
  17. red-green-black
  18. 29000
  19. green-green-brown
  20. violet-orange-orange
  21. 580
  22. 5
  23. 21
  24. 850
  25. 0
  26. 640
  27. blue-orange-red
  28. 4
  29. 56
  30. 86
  31. brown-black-red
  32. 3.7
  33. 29
  34. 930
  35. 6
  36. 260
  37. orange-green-black
  38. 7.7
  39. 170
  40. 5300

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