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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 266 · 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, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) violet-orange-orange (b) violet-orange-red (c) violet-orange-brown (d) orange-violet-red
  3. 3.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) yellow-orange-black (b) green-orange-black (c) yellow-orange-brown (d) orange-yellow-black
  11. 11.🌈 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
  12. 12.🌈 In the resistor colour code, which number does white stand for?
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-black (b) grey-yellow-brown (c) grey-yellow-red (d) yellow-grey-brown
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-brown (c) brown-blue-orange (d) brown-blue-red
  22. 22.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does brown stand for?
  27. 27.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 280 Ω resistor? (a) red-grey-red (b) red-grey-brown (c) grey-red-brown (d) red-grey-black
  29. 29.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-orange (b) green-orange-red (c) green-orange-yellow (d) orange-green-orange
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) white-grey-black (b) grey-grey-black (c) grey-grey-brown (d) grey-white-black
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-orange (b) green-brown-red (c) brown-green-orange (d) green-brown-yellow
  35. 35.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-black-brown (b) white-white-red (c) white-white-brown (d) white-white-black
  38. 38.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-orange (b) grey-yellow-red (c) grey-yellow-yellow (d) yellow-grey-orange
  40. 40.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?

Answer key

  1. 64
  2. violet-orange-red
  3. 94000
  4. 4
  5. 7
  6. 4
  7. 45
  8. 85
  9. 5 %
  10. yellow-orange-black
  11. the one nearest an end
  12. 9
  13. 0
  14. 42000
  15. 30
  16. 92000
  17. 6
  18. grey-yellow-brown
  19. 2
  20. 77
  21. brown-blue-red
  22. 9.2
  23. 82000
  24. 71000
  25. 300
  26. 1
  27. 12
  28. red-grey-brown
  29. 7300
  30. 340
  31. 90000
  32. green-orange-orange
  33. grey-grey-black
  34. green-brown-orange
  35. 110
  36. 650
  37. white-white-brown
  38. 69
  39. grey-yellow-orange
  40. 21000

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