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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 957 · 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 yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  4. 4.🌈 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
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does black stand for?
  8. 8.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-red (c) yellow-brown-orange (d) brown-yellow-red
  11. 11.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) brown-yellow-red (b) brown-yellow-orange (c) yellow-brown-orange (d) brown-yellow-yellow
  16. 16.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-brown (b) green-red-black (c) red-green-brown (d) green-red-red
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does grey stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) blue-green-black (b) green-green-brown (c) green-blue-black (d) green-green-black
  24. 24.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does blue stand for?
  30. 30.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) white-orange-brown (b) orange-white-black (c) orange-white-red (d) orange-white-brown
  33. 33.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-orange (b) red-red-red (c) red-orange-orange (d) red-red-yellow
  35. 35.🌈 In the resistor colour code, which number does orange stand for?
  36. 36.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) grey-violet-brown (b) violet-grey-brown (c) grey-violet-red (d) grey-violet-black
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) violet-green-brown (b) grey-green-black (c) violet-green-black (d) green-violet-black
  40. 40.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 430
  2. 5 %
  3. 900
  4. the one nearest an end
  5. 7
  6. 1100
  7. 0
  8. 600
  9. 100
  10. yellow-brown-red
  11. 800
  12. 1
  13. 77000
  14. 65
  15. brown-yellow-orange
  16. 28000
  17. 6.4
  18. green-red-brown
  19. 2
  20. 3400
  21. 460
  22. 8
  23. green-green-black
  24. 78
  25. 1.7
  26. 6.7
  27. 95
  28. 19
  29. 6
  30. 12
  31. 82
  32. orange-white-brown
  33. 3000
  34. red-red-orange
  35. 3
  36. 95
  37. 76
  38. grey-violet-brown
  39. violet-green-black
  40. 720

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