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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 427 · 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.🌈 In the resistor colour code, which number does orange stand for?
  2. 2.🌈 In the resistor colour code, which number does blue stand for?
  3. 3.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) blue-green-brown (b) green-black-black (c) green-black-red (d) green-black-brown
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does white stand for?
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  14. 14.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  16. 16.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  17. 17.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-red (c) orange-grey-brown (d) orange-grey-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-black (b) green-blue-brown (c) green-blue-red (d) blue-green-brown
  24. 24.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-black (b) blue-violet-brown (c) blue-blue-brown (d) blue-blue-red
  26. 26.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) green-white-black (b) blue-white-black (c) white-green-black (d) green-white-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-black (b) orange-violet-red (c) orange-violet-brown (d) violet-orange-brown
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) grey-brown-brown (b) white-brown-black (c) grey-brown-black (d) brown-grey-black
  35. 35.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) grey-violet-orange (b) violet-grey-orange (c) violet-grey-red (d) violet-grey-yellow
  38. 38.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 3
  2. 6
  3. 98
  4. 0
  5. 110
  6. 390
  7. 1
  8. 5
  9. green-black-brown
  10. 4
  11. 15
  12. 9
  13. 5 %
  14. 63
  15. 190
  16. the one nearest an end
  17. 470
  18. 2800
  19. 66000
  20. 180
  21. 52
  22. orange-grey-brown
  23. green-blue-brown
  24. 33
  25. blue-blue-brown
  26. 54
  27. 6.2
  28. 18000
  29. 260
  30. green-white-black
  31. orange-violet-brown
  32. 2
  33. 130
  34. grey-brown-black
  35. 530
  36. 32
  37. violet-grey-orange
  38. 92
  39. 93000
  40. 220

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