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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 758 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65000 Ω resistor? (a) blue-green-orange (b) blue-green-red (c) blue-green-yellow (d) green-blue-orange
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-blue-black (b) violet-black-black (c) blue-black-black (d) blue-black-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-brown (b) green-green-orange (c) green-green-red (d) green-blue-red
  5. 5.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, violet, 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 white, red, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  10. 10.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-brown (b) blue-red-red (c) red-blue-red (d) red-blue-orange
  12. 12.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-brown (b) brown-green-orange (c) green-brown-red (d) brown-green-red
  14. 14.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-yellow (b) orange-green-orange (c) orange-green-red (d) green-orange-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-black (b) orange-orange-brown (c) orange-orange-red (d) orange-yellow-brown
  18. 18.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does orange stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) violet-blue-black (b) violet-violet-black (c) blue-violet-brown (d) blue-violet-black
  22. 22.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) yellow-white-black (b) white-yellow-brown (c) white-yellow-black (d) brown-yellow-black
  25. 25.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) blue-grey-red (b) grey-blue-brown (c) grey-blue-red (d) grey-blue-orange
  27. 27.🌈 In the resistor colour code, which number does green stand for?
  28. 28.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) green-brown-black (b) brown-green-brown (c) red-green-black (d) brown-green-black
  32. 32.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-yellow (b) red-violet-orange (c) violet-red-red (d) violet-red-orange
  34. 34.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?

Answer key

  1. blue-green-orange
  2. 2
  3. blue-black-black
  4. green-green-red
  5. 760
  6. 6700
  7. 0
  8. 9.2
  9. the one nearest an end
  10. 45
  11. red-blue-red
  12. 300
  13. brown-green-red
  14. 1600
  15. 7
  16. orange-green-orange
  17. orange-orange-brown
  18. 13
  19. 25
  20. 3
  21. blue-violet-black
  22. 440
  23. 3.1
  24. white-yellow-black
  25. 5 %
  26. grey-blue-red
  27. 5
  28. 87
  29. 2.5
  30. 6
  31. brown-green-black
  32. 19
  33. violet-red-orange
  34. 31000
  35. 290
  36. 1
  37. 38
  38. 3.3
  39. 9100
  40. 79000

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