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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 897 · 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 band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) grey-green-black (b) green-grey-brown (c) blue-grey-black (d) green-grey-black
  5. 5.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  10. 10.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) grey-black-red (b) grey-black-orange (c) grey-black-yellow (d) white-grey-orange
  12. 12.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75000 Ω resistor? (a) violet-green-yellow (b) green-violet-orange (c) violet-green-orange (d) violet-green-red
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 In the resistor colour code, which number does green stand for?
  23. 23.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-red (b) yellow-green-brown (c) yellow-green-black (d) green-yellow-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) brown-orange-brown (b) orange-brown-brown (c) orange-brown-red (d) orange-brown-black
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) yellow-blue-red (b) yellow-blue-black (c) yellow-blue-brown (d) blue-yellow-brown
  32. 32.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-brown (b) violet-grey-brown (c) violet-violet-black (d) violet-violet-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-red (b) brown-white-orange (c) white-black-yellow (d) white-black-orange
  37. 37.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does white stand for?

Answer key

  1. the one nearest an end
  2. 1
  3. 2.8
  4. green-grey-black
  5. 8.2
  6. 7.1
  7. 3600
  8. 3300
  9. 5 %
  10. 89
  11. grey-black-orange
  12. 6.2
  13. 8.5
  14. 350
  15. violet-green-orange
  16. 4
  17. 260
  18. 22
  19. 8200
  20. 9.3
  21. 7
  22. 5
  23. 38
  24. 37000
  25. yellow-green-brown
  26. orange-brown-brown
  27. 6
  28. 160
  29. 1
  30. 1.1
  31. yellow-blue-brown
  32. 39000
  33. 42
  34. 540
  35. violet-violet-brown
  36. white-black-orange
  37. 15
  38. 62000
  39. 1.5
  40. 9

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