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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 912 · 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 3600 Ω resistor? (a) blue-orange-red (b) orange-blue-red (c) orange-blue-brown (d) orange-blue-orange
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) white-violet-orange (b) violet-white-yellow (c) violet-white-orange (d) violet-white-red
  3. 3.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) grey-brown-brown (b) grey-brown-black (c) grey-brown-red (d) brown-grey-brown
  7. 7.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  8. 8.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 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
  13. 13.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) white-red-black (b) red-grey-black (c) grey-red-brown (d) grey-red-black
  16. 16.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-orange (b) white-blue-brown (c) blue-white-red (d) white-blue-red
  18. 18.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 In the resistor colour code, which number does green stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-red (b) violet-red-brown (c) violet-red-orange (d) red-violet-red
  22. 22.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) orange-white-orange (c) white-orange-yellow (d) white-orange-orange
  26. 26.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) grey-violet-orange (b) violet-black-yellow (c) violet-black-red (d) violet-black-orange
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-red (b) violet-red-red (c) red-violet-brown (d) red-violet-orange
  30. 30.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-yellow (b) violet-red-orange (c) violet-red-red (d) red-violet-orange
  33. 33.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does red stand for?
  37. 37.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-yellow (b) red-black-red (c) red-black-orange (d) orange-red-orange
  40. 40.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?

Answer key

  1. orange-blue-red
  2. violet-white-orange
  3. 67
  4. 45
  5. 450
  6. grey-brown-brown
  7. the one nearest an end
  8. 41
  9. 6
  10. 8
  11. 1
  12. green-grey-brown
  13. 310
  14. 5 %
  15. grey-red-black
  16. 78000
  17. white-blue-red
  18. 67
  19. 7
  20. 5
  21. violet-red-red
  22. 21
  23. 3
  24. 160
  25. white-orange-orange
  26. 4.1
  27. 1.4
  28. violet-black-orange
  29. red-violet-red
  30. 860
  31. 56
  32. violet-red-orange
  33. 72
  34. 2.6
  35. 140
  36. 2
  37. 16
  38. 7.9
  39. red-black-orange
  40. 20

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