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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 667 · 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 green stand for?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) yellow-black-brown (b) yellow-black-black (c) yellow-black-red (d) green-yellow-brown
  4. 4.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) green-orange-brown (b) orange-green-red (c) orange-green-black (d) orange-green-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-black (b) brown-orange-brown (c) brown-orange-red (d) orange-brown-brown
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) grey-green-black (b) violet-green-brown (c) violet-green-black (d) green-violet-black
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 In the resistor colour code, which number does blue stand for?
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-orange (b) green-green-yellow (c) green-green-red (d) green-blue-orange
  21. 21.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  25. 25.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-orange (b) blue-black-red (c) violet-blue-red (d) blue-black-brown
  28. 28.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 In the resistor colour code, which number does red stand for?
  32. 32.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-red (b) violet-grey-brown (c) violet-grey-black (d) grey-violet-brown
  36. 36.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-orange (c) brown-black-brown (d) brown-black-red
  39. 39.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?

Answer key

  1. 5
  2. 5 %
  3. yellow-black-brown
  4. 85000
  5. 9
  6. 340
  7. 18000
  8. orange-green-brown
  9. brown-orange-brown
  10. 1
  11. 130
  12. violet-green-black
  13. 8
  14. 6
  15. 3
  16. 4.7
  17. 6.2
  18. 44
  19. 9700
  20. green-green-orange
  21. 40000
  22. 8900
  23. 63
  24. the one nearest an end
  25. 99000
  26. 550
  27. blue-black-red
  28. 480
  29. 8800
  30. 4
  31. 2
  32. 33
  33. 8.5
  34. 8.2
  35. violet-grey-brown
  36. 71
  37. 38000
  38. brown-black-red
  39. 36
  40. 17

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