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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 292 · 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 resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  4. 4.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does orange stand for?
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-brown (b) orange-grey-orange (c) orange-grey-red (d) grey-orange-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-black (b) green-grey-red (c) green-grey-brown (d) grey-green-brown
  20. 20.🌈 In the resistor colour code, which number does black stand for?
  21. 21.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-red (b) brown-brown-yellow (c) brown-red-orange (d) brown-brown-orange
  23. 23.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) violet-orange-black (b) orange-violet-brown (c) violet-orange-red (d) violet-orange-brown
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-orange (b) white-yellow-yellow (c) yellow-white-orange (d) white-yellow-red
  35. 35.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) yellow-grey-red (b) grey-yellow-red (c) yellow-grey-brown (d) yellow-grey-orange
  39. 39.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?

Answer key

  1. 6100
  2. 7.1
  3. the one nearest an end
  4. 500
  5. 94
  6. 5 %
  7. 6
  8. 8
  9. 7
  10. 32
  11. 66000
  12. 3
  13. 2
  14. 7900
  15. 14
  16. 94
  17. 5
  18. orange-grey-red
  19. green-grey-brown
  20. 0
  21. 36000
  22. brown-brown-orange
  23. 340
  24. 9
  25. 35
  26. 4
  27. 480
  28. 1.8
  29. 230
  30. 420
  31. 6.2
  32. 1
  33. violet-orange-brown
  34. white-yellow-orange
  35. 58
  36. 30
  37. 2.6
  38. yellow-grey-red
  39. 2600
  40. 54

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