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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 802 · 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.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-orange (b) brown-blue-yellow (c) brown-blue-red (d) blue-brown-orange
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) brown-blue-black (b) red-blue-black (c) blue-brown-black (d) brown-blue-brown
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) violet-blue-red (b) blue-violet-orange (c) blue-violet-red (d) blue-violet-brown
  8. 8.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) yellow-white-black (b) yellow-white-brown (c) white-yellow-brown (d) yellow-white-red
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  12. 12.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-blue-black (b) green-green-black (c) blue-green-black (d) green-green-brown
  14. 14.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) yellow-red-orange (b) red-yellow-red (c) red-yellow-orange (d) red-yellow-yellow
  19. 19.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-brown (b) brown-brown-red (c) brown-red-red (d) brown-brown-orange
  21. 21.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does violet stand for?
  23. 23.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) red-green-orange (b) red-green-red (c) green-red-red (d) red-green-brown
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-brown (b) blue-grey-red (c) grey-blue-brown (d) blue-grey-black
  26. 26.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does white stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-red (b) orange-red-orange (c) red-black-yellow (d) red-black-orange
  30. 30.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-orange (b) brown-green-red (c) green-brown-brown (d) green-brown-red
  33. 33.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-black (b) blue-black-red (c) blue-black-brown (d) violet-blue-brown
  36. 36.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does orange stand for?
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) brown-white-brown (c) white-brown-black (d) red-white-black
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) yellow-violet-black (b) orange-violet-brown (c) violet-orange-black (d) orange-violet-black

Answer key

  1. 29
  2. 1
  3. brown-blue-orange
  4. 0
  5. 5 %
  6. brown-blue-black
  7. blue-violet-red
  8. 2100
  9. yellow-white-brown
  10. 8
  11. the one nearest an end
  12. 1.5
  13. green-green-black
  14. 940
  15. 5900
  16. 650
  17. 2
  18. red-yellow-orange
  19. 200
  20. brown-brown-red
  21. 12
  22. 7
  23. 980
  24. red-green-red
  25. blue-grey-brown
  26. 3.3
  27. 330
  28. 9
  29. red-black-orange
  30. 35
  31. 420
  32. green-brown-red
  33. 66
  34. 63
  35. blue-black-brown
  36. 13
  37. 3
  38. 6
  39. brown-white-black
  40. orange-violet-black

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