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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 992 · 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.🌈 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
  2. 2.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-red (b) white-brown-orange (c) white-brown-brown (d) brown-white-red
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  6. 6.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-brown (b) red-violet-black (c) violet-red-brown (d) red-violet-red
  9. 9.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-orange-black (b) red-red-black (c) orange-red-black (d) red-red-brown
  11. 11.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) green-violet-brown (b) violet-green-black (c) green-violet-black (d) blue-violet-black
  14. 14.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does white stand for?
  17. 17.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) yellow-white-brown (b) white-yellow-brown (c) white-yellow-black (d) white-yellow-red
  19. 19.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-brown (b) red-black-black (c) orange-red-brown (d) red-black-red
  22. 22.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) grey-blue-red (b) blue-grey-red (c) blue-grey-brown (d) blue-grey-orange
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does brown stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-brown (b) brown-grey-orange (c) grey-brown-red (d) brown-grey-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) red-orange-black (b) red-orange-red (c) orange-red-brown (d) red-orange-brown
  33. 33.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-brown (b) orange-green-orange (c) orange-green-red (d) green-orange-red
  35. 35.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-brown (b) red-brown-black (c) orange-brown-black (d) brown-red-black
  40. 40.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 6.1
  3. 27
  4. white-brown-red
  5. 5 %
  6. 14000
  7. 4
  8. red-violet-brown
  9. 700
  10. red-red-black
  11. 79000
  12. 8
  13. green-violet-black
  14. 810
  15. 540
  16. 9
  17. 7.7
  18. white-yellow-brown
  19. 270
  20. 200
  21. red-black-brown
  22. 5500
  23. 51000
  24. blue-grey-red
  25. 5
  26. 970
  27. 68000
  28. 33000
  29. 910
  30. 1
  31. brown-grey-red
  32. red-orange-brown
  33. 58
  34. orange-green-red
  35. 300
  36. 76
  37. 5.3
  38. 9.9
  39. red-brown-black
  40. 15000

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