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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 466 · 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.

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  1. 1.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 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
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  5. 5.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-red-brown (b) red-red-red (c) red-orange-red (d) red-red-orange
  9. 9.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-red (b) orange-black-black (c) yellow-orange-brown (d) orange-black-brown
  15. 15.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-orange (b) orange-grey-brown (c) grey-orange-red (d) orange-grey-red
  19. 19.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does red stand for?
  21. 21.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does black stand for?
  24. 24.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does grey stand for?
  26. 26.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) grey-yellow-red (b) yellow-grey-orange (c) yellow-grey-brown (d) yellow-grey-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-brown (b) brown-blue-orange (c) brown-blue-red (d) blue-brown-red
  29. 29.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) brown-blue-black (b) white-blue-brown (c) white-blue-black (d) blue-white-black
  35. 35.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) orange-violet-black (b) red-violet-brown (c) violet-red-black (d) red-violet-black
  37. 37.🌈 In the resistor colour code, which number does blue stand for?
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 890
  2. 4
  3. the one nearest an end
  4. 5 %
  5. 9300
  6. 3.3
  7. 8700
  8. red-red-red
  9. 86000
  10. 3
  11. 1.2
  12. 530
  13. 46
  14. orange-black-brown
  15. 940
  16. 93
  17. 570
  18. orange-grey-red
  19. 8.2
  20. 2
  21. 12
  22. 280
  23. 0
  24. 95
  25. 8
  26. 810
  27. yellow-grey-red
  28. brown-blue-red
  29. 510
  30. 2
  31. 210
  32. 3.5
  33. 2200
  34. white-blue-black
  35. 68000
  36. red-violet-black
  37. 6
  38. 9
  39. 690
  40. 25

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