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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 993 · 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 yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  5. 5.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) violet-yellow-black (b) blue-yellow-brown (c) blue-yellow-black (d) yellow-blue-black
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-brown (b) violet-black-red (c) grey-violet-red (d) violet-black-orange
  21. 21.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does violet stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-red (b) brown-brown-black (c) brown-red-brown (d) brown-brown-brown
  24. 24.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-brown (b) red-orange-red (c) orange-red-orange (d) orange-red-red
  26. 26.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does orange stand for?
  28. 28.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-brown (b) yellow-white-orange (c) yellow-white-red (d) white-yellow-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-orange (b) blue-black-yellow (c) violet-blue-orange (d) blue-black-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) blue-brown-black (b) brown-blue-brown (c) red-blue-black (d) brown-blue-black
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-orange (b) red-white-yellow (c) white-red-orange (d) red-white-red
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-black (b) green-blue-brown (c) blue-green-brown (d) blue-green-red
  35. 35.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-orange (b) violet-violet-brown (c) violet-grey-red (d) violet-violet-red
  37. 37.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?

Answer key

  1. 410
  2. 730
  3. 4.2
  4. 5 %
  5. 79
  6. the one nearest an end
  7. blue-yellow-black
  8. 6
  9. 450
  10. 40
  11. 720
  12. 5.5
  13. 2.1
  14. 5
  15. 4200
  16. 1700
  17. 30000
  18. 4
  19. 1
  20. violet-black-red
  21. 50
  22. 7
  23. brown-brown-brown
  24. 75
  25. orange-red-red
  26. 330
  27. 3
  28. 520
  29. yellow-white-red
  30. blue-black-orange
  31. brown-blue-black
  32. red-white-orange
  33. 0
  34. blue-green-brown
  35. 580
  36. violet-violet-red
  37. 5400
  38. 130
  39. 920
  40. 990

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