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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 214 · 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 green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) red-green-orange (b) red-green-red (c) green-red-red (d) red-green-brown
  5. 5.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  10. 10.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) red-white-black (c) white-brown-black (d) brown-white-brown
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-orange (b) violet-violet-brown (c) violet-violet-red (d) violet-grey-red
  20. 20.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-black (b) white-brown-brown (c) brown-white-red (d) brown-white-brown
  26. 26.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-red (b) orange-white-black (c) orange-white-brown (d) white-orange-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) grey-brown-red (b) brown-grey-red (c) brown-grey-brown (d) brown-grey-orange
  32. 32.🌈 In the resistor colour code, which number does black stand for?
  33. 33.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does grey stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) red-black-brown (c) orange-red-red (d) red-black-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-black (b) green-brown-black (c) yellow-brown-brown (d) brown-yellow-black
  38. 38.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 570
  2. 5 %
  3. 6.1
  4. red-green-red
  5. 55
  6. 6400
  7. 7
  8. 2.1
  9. the one nearest an end
  10. 59000
  11. 960
  12. 2
  13. 69
  14. 900
  15. brown-white-black
  16. 4
  17. 6.6
  18. 16000
  19. violet-violet-red
  20. 3.2
  21. 1
  22. 70000
  23. 5300
  24. 6800
  25. brown-white-brown
  26. 5
  27. 3.1
  28. 61
  29. 2.6
  30. orange-white-brown
  31. brown-grey-red
  32. 0
  33. 63
  34. 13
  35. 8
  36. red-black-red
  37. yellow-brown-black
  38. 920
  39. 8.2
  40. 4.9

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