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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 595 · 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 brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  5. 5.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8900 Ω resistor? (a) grey-white-red (b) grey-white-brown (c) grey-white-orange (d) white-grey-red
  7. 7.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  8. 8.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) white-red-red (b) red-white-orange (c) red-white-brown (d) red-white-red
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-brown (b) green-grey-red (c) green-grey-orange (d) grey-green-red
  15. 15.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does grey stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) red-orange-red (b) red-orange-yellow (c) orange-red-orange (d) red-orange-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) grey-blue-brown (b) blue-grey-red (c) blue-grey-brown (d) blue-grey-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-yellow (b) red-white-orange (c) red-white-red (d) white-red-orange
  20. 20.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) red-violet-brown (b) violet-red-red (c) violet-red-black (d) violet-red-brown
  25. 25.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-brown (b) yellow-red-orange (c) yellow-red-red (d) red-yellow-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) red-black-brown (c) red-black-red (d) orange-red-brown
  28. 28.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) blue-orange-orange (c) orange-blue-orange (d) orange-blue-red
  37. 37.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 150
  2. 3.2
  3. 34
  4. 5 %
  5. 630
  6. grey-white-red
  7. the one nearest an end
  8. 7800
  9. 660
  10. red-white-red
  11. 7
  12. 1800
  13. 980
  14. green-grey-red
  15. 190
  16. 8
  17. red-orange-orange
  18. blue-grey-brown
  19. red-white-orange
  20. 33000
  21. 54000
  22. 92000
  23. 500
  24. violet-red-brown
  25. 1000
  26. yellow-red-red
  27. red-black-brown
  28. 6300
  29. 380
  30. 740
  31. 100
  32. 71000
  33. 25
  34. 180
  35. 2
  36. orange-blue-orange
  37. 720
  38. 9.7
  39. 75
  40. 3

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