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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 172 · 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 black stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-red (b) white-orange-brown (c) orange-white-brown (d) orange-white-black
  3. 3.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does grey stand for?
  6. 6.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) white-violet-brown (b) violet-white-black (c) brown-violet-black (d) white-violet-black
  9. 9.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) brown-red-red (b) red-brown-red (c) red-brown-orange (d) red-brown-brown
  16. 16.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  17. 17.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-orange (b) orange-violet-brown (c) orange-violet-red (d) violet-orange-red
  23. 23.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) orange-yellow-black (b) yellow-red-black (c) red-yellow-brown (d) red-yellow-black
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-yellow-red (b) yellow-green-brown (c) yellow-yellow-brown (d) yellow-yellow-black
  27. 27.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-orange (b) red-white-brown (c) red-white-red (d) white-red-red
  29. 29.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) orange-orange-black (c) yellow-orange-black (d) orange-orange-brown
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) blue-green-black (b) blue-black-black (c) green-black-black (d) green-black-brown
  40. 40.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 0
  2. orange-white-brown
  3. 60000
  4. 4.6
  5. 8
  6. 34
  7. 5 %
  8. white-violet-black
  9. 51
  10. 650
  11. 35
  12. 69000
  13. 3.8
  14. 7.6
  15. red-brown-red
  16. the one nearest an end
  17. 7.1
  18. 6
  19. 1
  20. 2600
  21. 85
  22. orange-violet-red
  23. 100
  24. 7
  25. red-yellow-black
  26. yellow-yellow-brown
  27. 20
  28. red-white-red
  29. 33000
  30. orange-orange-black
  31. 9
  32. 23000
  33. 1800
  34. 78
  35. 3.7
  36. 41
  37. 1100
  38. 62000
  39. green-black-black
  40. 7.3

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