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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 776 · 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 red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) violet-red-brown (b) violet-red-black (c) violet-red-red (d) red-violet-brown
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) brown-yellow-red (b) brown-yellow-orange (c) brown-yellow-yellow (d) yellow-brown-orange
  10. 10.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  16. 16.🌈 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
  17. 17.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) yellow-white-black (b) brown-yellow-black (c) white-yellow-brown (d) white-yellow-black
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) grey-orange-red (b) orange-grey-brown (c) orange-grey-red (d) orange-grey-orange
  22. 22.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-red (b) white-brown-orange (c) white-brown-yellow (d) brown-white-orange
  24. 24.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-red (b) violet-blue-brown (c) violet-blue-black (d) blue-violet-brown
  27. 27.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does white stand for?
  33. 33.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-red (b) yellow-white-orange (c) yellow-white-brown (d) white-yellow-red
  35. 35.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does red stand for?
  37. 37.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?

Answer key

  1. 280
  2. 8100
  3. 9.4
  4. violet-red-brown
  5. 0
  6. 1
  7. 5 %
  8. 7
  9. brown-yellow-orange
  10. 3
  11. 3
  12. 4
  13. 8.3
  14. 930
  15. 76000
  16. the one nearest an end
  17. 210
  18. 440
  19. 1.6
  20. white-yellow-black
  21. orange-grey-red
  22. 580
  23. white-brown-orange
  24. 9500
  25. 250
  26. violet-blue-brown
  27. 20
  28. 410
  29. 3.3
  30. 100
  31. 38
  32. 9
  33. 730
  34. yellow-white-red
  35. 160
  36. 2
  37. 92
  38. 690
  39. 1
  40. 4500

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