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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 164 · 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 widest gap (b) the gold band (c) any band (d) the one nearest an end
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  3. 3.🌈 In the resistor colour code, which number does grey stand for?
  4. 4.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-red (b) orange-black-brown (c) yellow-orange-brown (d) orange-black-black
  10. 10.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) blue-orange-black (b) violet-orange-black (c) orange-blue-black (d) blue-orange-brown
  13. 13.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) white-violet-black (b) violet-white-black (c) violet-white-brown (d) grey-white-black
  15. 15.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) green-violet-red (b) green-violet-orange (c) green-violet-brown (d) violet-green-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) violet-grey-brown (b) grey-violet-brown (c) grey-violet-black (d) grey-violet-red
  22. 22.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does violet stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-orange (b) green-orange-red (c) green-orange-brown (d) orange-green-red
  30. 30.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does yellow stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) grey-yellow-red (b) yellow-grey-brown (c) yellow-grey-red (d) yellow-grey-orange
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does red stand for?
  37. 37.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5 %
  3. 8
  4. 930
  5. 11000
  6. 1
  7. 670
  8. 49
  9. orange-black-brown
  10. 1200
  11. 0
  12. blue-orange-black
  13. 6.6
  14. violet-white-black
  15. 800
  16. 3.1
  17. 3600
  18. 5
  19. 94
  20. green-violet-red
  21. grey-violet-brown
  22. 33000
  23. 40
  24. 600
  25. 19000
  26. 7.2
  27. 18
  28. 7
  29. green-orange-red
  30. 28
  31. 88
  32. 4
  33. yellow-grey-red
  34. 9
  35. 21000
  36. 2
  37. 36
  38. 5.1
  39. 8.3
  40. 85

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