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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 414 · 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 orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) red-yellow-red (b) yellow-red-brown (c) yellow-red-red (d) yellow-red-orange
  3. 3.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 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
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-red (b) violet-black-brown (c) violet-black-black (d) grey-violet-brown
  8. 8.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does orange stand for?
  17. 17.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-orange (b) red-yellow-brown (c) yellow-red-red (d) red-yellow-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-orange (b) white-black-red (c) brown-white-orange (d) white-black-yellow
  23. 23.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does brown stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-brown (b) green-grey-black (c) grey-yellow-black (d) yellow-grey-black
  29. 29.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-blue-red (d) green-green-orange
  32. 32.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) grey-green-black (b) violet-green-black (c) green-violet-black (d) violet-green-brown
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-black (b) orange-orange-red (c) orange-yellow-brown (d) orange-orange-brown
  35. 35.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-grey-brown (b) grey-white-brown (c) grey-grey-black (d) grey-grey-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) violet-red-brown (b) red-violet-brown (c) red-violet-red (d) red-violet-black
  38. 38.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 32
  2. yellow-red-red
  3. 1800
  4. 5 %
  5. 7
  6. the one nearest an end
  7. violet-black-brown
  8. 96
  9. 200
  10. 370
  11. 0
  12. 2
  13. 580
  14. 8600
  15. 3.2
  16. 3
  17. 6.2
  18. 5
  19. 1200
  20. 2.4
  21. red-yellow-red
  22. white-black-orange
  23. 73000
  24. 65
  25. 68
  26. 4200
  27. 1
  28. yellow-grey-black
  29. 1.9
  30. 900
  31. green-green-red
  32. 64000
  33. violet-green-black
  34. orange-orange-brown
  35. 3900
  36. grey-grey-brown
  37. red-violet-brown
  38. 47
  39. 240
  40. 420

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