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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 92 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 750 Ω resistor? (a) green-violet-brown (b) violet-green-black (c) violet-green-brown (d) violet-green-red
  4. 4.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-orange (b) orange-red-red (c) red-orange-brown (d) red-orange-red
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) orange-white-brown (b) white-orange-brown (c) white-orange-red (d) white-orange-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) white-green-red (b) green-white-orange (c) white-green-orange (d) white-green-yellow
  14. 14.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) brown-green-black (b) blue-brown-black (c) green-brown-brown (d) green-brown-black
  17. 17.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) orange-red-red (b) red-black-orange (c) red-black-red (d) red-black-brown
  25. 25.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-brown (b) brown-black-orange (c) brown-black-red (d) red-brown-red
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does green stand for?
  31. 31.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85000 Ω resistor? (a) grey-green-orange (b) green-grey-orange (c) grey-green-red (d) grey-green-yellow
  35. 35.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does orange stand for?
  38. 38.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-orange (b) brown-green-red (c) green-brown-red (d) brown-green-brown
  40. 40.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. violet-green-brown
  4. 5.9
  5. red-orange-red
  6. 2
  7. 5.4
  8. 53
  9. 96
  10. 810
  11. 1
  12. white-orange-brown
  13. white-green-orange
  14. 840
  15. 44
  16. green-brown-black
  17. 50
  18. 11000
  19. 98
  20. 630
  21. 760
  22. 4
  23. 64
  24. red-black-red
  25. 59000
  26. 81
  27. brown-black-red
  28. 0
  29. 10000
  30. 5
  31. 1.2
  32. 640
  33. 8.3
  34. grey-green-orange
  35. 8.4
  36. 7.4
  37. 3
  38. 84
  39. brown-green-red
  40. 17000

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