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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 857 · 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 gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) blue-grey-yellow (b) blue-grey-red (c) blue-grey-orange (d) grey-blue-orange
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  4. 4.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-black (b) green-white-red (c) green-white-brown (d) white-green-brown
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) yellow-red-yellow (b) yellow-red-red (c) red-yellow-orange (d) yellow-red-orange
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 In the resistor colour code, which number does white stand for?
  9. 9.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-red-brown (b) brown-brown-black (c) brown-brown-red (d) brown-brown-brown
  12. 12.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does yellow stand for?
  14. 14.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) blue-red-red (b) blue-red-brown (c) blue-red-orange (d) red-blue-red
  16. 16.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-red (b) green-white-brown (c) white-green-red (d) green-white-orange
  20. 20.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) yellow-grey-red (b) yellow-grey-orange (c) yellow-grey-brown (d) grey-yellow-red
  23. 23.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-brown (b) blue-grey-orange (c) blue-grey-red (d) grey-blue-red
  25. 25.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-red (b) orange-yellow-orange (c) orange-orange-orange (d) orange-orange-yellow
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) green-orange-black (b) orange-green-black (c) green-orange-brown (d) blue-orange-black
  28. 28.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) violet-white-black (b) violet-white-brown (c) white-violet-black (d) grey-white-black
  31. 31.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-orange (b) orange-grey-yellow (c) grey-orange-orange (d) orange-grey-red
  33. 33.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-yellow-black (b) yellow-green-black (c) yellow-green-brown (d) green-green-black
  36. 36.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. blue-grey-orange
  3. the one nearest an end
  4. 760
  5. green-white-brown
  6. yellow-red-orange
  7. 2
  8. 9
  9. 27
  10. 17000
  11. brown-brown-brown
  12. 57
  13. 4
  14. 6100
  15. blue-red-red
  16. 92
  17. 21
  18. 36
  19. green-white-red
  20. 890
  21. 140
  22. yellow-grey-red
  23. 660
  24. blue-grey-red
  25. 280
  26. orange-orange-orange
  27. green-orange-black
  28. 68000
  29. 960
  30. violet-white-black
  31. 54
  32. orange-grey-orange
  33. 78000
  34. 730
  35. yellow-green-black
  36. 3800
  37. 3600
  38. 6
  39. 6.4
  40. 4.1

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