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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 37 · 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) any band (c) the one nearest an end (d) the gold band
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  4. 4.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 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
  7. 7.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-red (b) yellow-grey-brown (c) grey-yellow-brown (d) grey-yellow-black
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) green-grey-black (c) grey-green-black (d) blue-grey-black
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  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 white, yellow, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does violet stand for?
  27. 27.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does brown stand for?
  32. 32.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-black (b) orange-red-brown (c) red-orange-brown (d) orange-red-red
  34. 34.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-black (b) blue-green-brown (c) green-black-red (d) green-black-brown
  40. 40.🌈 In the resistor colour code, which number does grey stand for?

Answer key

  1. the one nearest an end
  2. 5
  3. 5 %
  4. 80000
  5. 13
  6. brown-black-red
  7. 5100
  8. 4.7
  9. grey-yellow-brown
  10. green-grey-black
  11. 0
  12. 4
  13. 2
  14. 6
  15. 3
  16. 94
  17. 590
  18. 510
  19. 830
  20. 10000
  21. 8300
  22. 29
  23. 7100
  24. 12
  25. 880
  26. 7
  27. 570
  28. 4
  29. 75
  30. 160
  31. 1
  32. 9.4
  33. orange-red-brown
  34. 410
  35. 2900
  36. 250
  37. 590
  38. 7.7
  39. green-black-brown
  40. 8

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