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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 753 · 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 violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) brown-violet-orange (b) violet-brown-red (c) violet-brown-yellow (d) violet-brown-orange
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  6. 6.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 In the resistor colour code, which number does orange stand for?
  13. 13.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-brown (b) grey-yellow-black (c) grey-yellow-red (d) yellow-grey-brown
  19. 19.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-orange (b) orange-violet-brown (c) violet-orange-red (d) orange-violet-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-black (b) yellow-brown-black (c) brown-yellow-brown (d) red-yellow-black
  23. 23.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-grey-orange (b) grey-grey-red (c) grey-grey-brown (d) grey-white-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-red (b) red-red-black (c) red-orange-brown (d) red-red-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-red (b) violet-blue-yellow (c) violet-blue-orange (d) blue-violet-orange
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) white-black-brown (b) brown-black-black (c) brown-white-black (d) white-black-black
  29. 29.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) violet-blue-red (b) blue-violet-brown (c) blue-violet-red (d) blue-violet-orange
  31. 31.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does red stand for?
  38. 38.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-black (b) blue-red-brown (c) red-blue-black (d) violet-red-black
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. 75
  2. violet-brown-orange
  3. 1
  4. 6.2
  5. 5 %
  6. 3400
  7. 20000
  8. 7.8
  9. 160
  10. 1900
  11. 9
  12. 3
  13. 13
  14. 12
  15. 60
  16. 49
  17. 7
  18. grey-yellow-brown
  19. 52
  20. 73000
  21. orange-violet-red
  22. brown-yellow-black
  23. 25000
  24. 910
  25. grey-grey-red
  26. red-red-brown
  27. violet-blue-orange
  28. white-black-black
  29. 48000
  30. blue-violet-red
  31. 16
  32. 7
  33. 8
  34. 40000
  35. 4.5
  36. 930
  37. 2
  38. the one nearest an end
  39. blue-red-black
  40. 5

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