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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 175 · 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 white, orange, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-orange (b) red-yellow-red (c) yellow-red-red (d) red-yellow-brown
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) yellow-yellow-brown (b) yellow-yellow-black (c) green-yellow-black (d) yellow-green-black
  11. 11.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) green-orange-black (b) green-orange-red (c) orange-green-brown (d) green-orange-brown
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-yellow (b) grey-blue-red (c) grey-blue-orange (d) blue-grey-orange
  19. 19.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-grey-black (b) grey-grey-brown (c) grey-white-black (d) white-grey-black
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) white-red-black (b) orange-white-black (c) red-white-black (d) red-white-brown
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-yellow (b) grey-orange-orange (c) orange-grey-orange (d) orange-grey-red
  30. 30.🌈 In the resistor colour code, which number does brown stand for?
  31. 31.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-red (b) red-black-black (c) orange-red-brown (d) red-black-brown
  33. 33.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) yellow-white-black (b) orange-white-brown (c) orange-white-black (d) white-orange-black

Answer key

  1. 9.3
  2. 470
  3. 8
  4. the one nearest an end
  5. red-yellow-red
  6. 7
  7. 9.9
  8. 45000
  9. 77
  10. yellow-yellow-black
  11. 7.8
  12. 6
  13. green-orange-brown
  14. 3
  15. 99000
  16. 6800
  17. 44
  18. grey-blue-orange
  19. 80
  20. 2.6
  21. 4.9
  22. 15
  23. 1.4
  24. grey-grey-black
  25. 5
  26. 33
  27. red-white-black
  28. 0
  29. orange-grey-orange
  30. 1
  31. 620
  32. red-black-brown
  33. 41
  34. 4
  35. 77
  36. 800
  37. 15000
  38. 940
  39. 7000
  40. orange-white-black

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