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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 386 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-brown-brown (c) brown-red-black (d) brown-brown-black
  7. 7.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  8. 8.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-orange-brown (b) yellow-orange-black (c) orange-yellow-black (d) orange-orange-black
  16. 16.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  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 yellow stand for?
  22. 22.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) yellow-white-brown (b) white-yellow-black (c) white-yellow-red (d) white-yellow-brown
  28. 28.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) grey-black-black (b) white-grey-black (c) white-black-black (d) grey-black-brown
  30. 30.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-orange (b) orange-yellow-brown (c) yellow-orange-red (d) orange-yellow-red
  35. 35.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) grey-brown-black (b) brown-violet-black (c) violet-brown-black (d) violet-brown-brown
  38. 38.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does brown stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-black (b) orange-white-black (c) brown-orange-black (d) white-orange-brown

Answer key

  1. 5 %
  2. 95
  3. 3
  4. 0
  5. 21000
  6. brown-brown-black
  7. the one nearest an end
  8. 80
  9. 40
  10. 17000
  11. 390
  12. 6
  13. 3000
  14. 2.5
  15. orange-orange-black
  16. 58000
  17. 750
  18. 99
  19. 7.8
  20. 9.3
  21. 4
  22. 310
  23. 39
  24. 3.8
  25. 60
  26. 930
  27. white-yellow-brown
  28. 11
  29. grey-black-black
  30. 88
  31. 2.1
  32. 970
  33. 570
  34. orange-yellow-red
  35. 960
  36. 9900
  37. violet-brown-black
  38. 19
  39. 1
  40. white-orange-black

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