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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 748 · 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 blue, grey, orange. 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) 50 % (b) 0 % (c) 5 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) violet-grey-brown (b) grey-violet-black (c) grey-violet-brown (d) grey-violet-red
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-black (b) violet-blue-brown (c) violet-blue-red (d) blue-violet-brown
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) grey-green-black (b) violet-green-brown (c) violet-green-black (d) green-violet-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) orange-red-brown (b) orange-red-black (c) yellow-red-black (d) red-orange-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-black (b) yellow-violet-red (c) yellow-violet-brown (d) violet-yellow-brown
  14. 14.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  17. 17.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  18. 18.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) yellow-blue-brown (b) blue-yellow-brown (c) yellow-blue-black (d) yellow-blue-red
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-yellow (b) brown-black-orange (c) brown-black-red (d) red-brown-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-brown (b) blue-violet-black (c) violet-blue-black (d) violet-violet-black
  26. 26.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does yellow stand for?
  28. 28.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-black-black (b) orange-black-black (c) yellow-orange-black (d) orange-black-brown
  32. 32.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) yellow-orange-brown (c) orange-black-brown (d) orange-black-red
  34. 34.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does black stand for?
  39. 39.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 68
  2. 5 %
  3. 220
  4. 82000
  5. 5
  6. 10
  7. 760
  8. 76
  9. grey-violet-brown
  10. violet-blue-brown
  11. violet-green-black
  12. orange-red-black
  13. yellow-violet-brown
  14. 5.8
  15. 210
  16. 27000
  17. the one nearest an end
  18. 3.5
  19. yellow-blue-brown
  20. 1
  21. 47
  22. 56
  23. 670
  24. brown-black-orange
  25. blue-violet-black
  26. 8600
  27. 4
  28. 4100
  29. 930
  30. 520
  31. orange-black-black
  32. 9600
  33. orange-black-brown
  34. 24
  35. 190
  36. 20
  37. 890
  38. 0
  39. 330
  40. 9.2

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