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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 279 · 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.🌈 In the resistor colour code, which number does grey stand for?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-brown (b) red-orange-brown (c) orange-red-red (d) orange-red-black
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) green-orange-brown (b) green-orange-black (c) orange-green-brown (d) green-orange-red
  6. 6.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-orange (b) yellow-brown-red (c) yellow-brown-yellow (d) brown-yellow-orange
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) blue-red-red (b) red-blue-red (c) blue-red-orange (d) blue-red-brown
  10. 10.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  13. 13.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) yellow-red-black (b) red-yellow-brown (c) yellow-red-red (d) yellow-red-brown
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) orange-violet-black (b) red-violet-brown (c) red-violet-black (d) violet-red-black
  21. 21.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) green-red-brown (b) red-green-black (c) red-green-red (d) red-green-brown
  23. 23.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) orange-blue-orange (c) blue-orange-orange (d) orange-blue-red
  33. 33.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does black stand for?
  38. 38.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 8
  2. 5 %
  3. orange-red-brown
  4. 1
  5. green-orange-brown
  6. 9900
  7. yellow-brown-orange
  8. 2
  9. blue-red-red
  10. 59
  11. 680
  12. the one nearest an end
  13. 1500
  14. 81000
  15. 280
  16. 32000
  17. 82000
  18. 770
  19. yellow-red-brown
  20. red-violet-black
  21. 7.4
  22. red-green-brown
  23. 120
  24. 7
  25. 5
  26. 85000
  27. 2700
  28. 940
  29. 6.2
  30. 3
  31. 20000
  32. orange-blue-orange
  33. 3.6
  34. 17
  35. 82
  36. 180
  37. 0
  38. 49
  39. 8100
  40. 6.5

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