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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 598 · 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.🌈 In the resistor colour code, which number does grey stand for?
  2. 2.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) green-red-red (b) green-red-orange (c) red-green-red (d) green-red-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-red (b) orange-black-yellow (c) orange-black-orange (d) yellow-orange-orange
  5. 5.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) yellow-violet-yellow (b) yellow-violet-orange (c) violet-yellow-orange (d) yellow-violet-red
  7. 7.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands orange, red, 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) the gold band (c) the widest gap (d) any band
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) white-orange-red (c) orange-white-red (d) white-orange-brown
  11. 11.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) yellow-violet-black (b) violet-orange-black (c) orange-violet-brown (d) orange-violet-black
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) red-green-brown (b) green-red-red (c) red-green-orange (d) red-green-red
  16. 16.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  18. 18.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) violet-red-black (b) red-violet-black (c) orange-violet-black (d) red-violet-brown
  20. 20.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) green-yellow-orange (c) yellow-black-orange (d) yellow-black-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-red (b) blue-violet-orange (c) blue-blue-orange (d) blue-blue-yellow
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) brown-violet-brown (b) violet-brown-black (c) red-violet-black (d) brown-violet-black
  25. 25.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) orange-white-brown (b) white-orange-brown (c) white-orange-red (d) white-orange-black
  27. 27.🌈 In the resistor colour code, which number does violet stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) brown-white-brown (b) white-brown-red (c) white-brown-black (d) white-brown-brown
  29. 29.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) grey-yellow-black (b) white-yellow-black (c) grey-yellow-brown (d) yellow-grey-black
  35. 35.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 8
  2. 250
  3. green-red-red
  4. orange-black-orange
  5. 13
  6. yellow-violet-orange
  7. 7.9
  8. 3.2
  9. the one nearest an end
  10. white-orange-red
  11. 2900
  12. 540
  13. 67
  14. orange-violet-black
  15. red-green-red
  16. 9100
  17. 5 %
  18. 650
  19. red-violet-black
  20. 6100
  21. yellow-black-orange
  22. blue-blue-orange
  23. 1
  24. brown-violet-black
  25. 21000
  26. white-orange-brown
  27. 7
  28. white-brown-brown
  29. 240
  30. 4
  31. 5.7
  32. 270
  33. 5
  34. grey-yellow-black
  35. 6.3
  36. 26
  37. 530
  38. 6800
  39. 1.1
  40. 71

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