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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 197 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) violet-orange-orange (b) orange-violet-orange (c) orange-violet-red (d) orange-violet-yellow
  2. 2.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-orange (b) orange-black-red (c) yellow-orange-orange (d) orange-black-yellow
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-red-orange (b) brown-brown-orange (c) brown-brown-red (d) brown-brown-yellow
  5. 5.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  8. 8.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) red-violet-black (c) red-violet-brown (d) violet-red-brown
  10. 10.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-orange (b) brown-green-brown (c) green-brown-red (d) brown-green-red
  13. 13.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 In the resistor colour code, which number does orange stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) brown-violet-black (b) white-violet-brown (c) white-violet-black (d) violet-white-black
  18. 18.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-red (b) green-brown-orange (c) brown-green-yellow (d) brown-green-orange
  29. 29.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) brown-red-red (d) brown-red-brown
  33. 33.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does grey stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-yellow (b) orange-yellow-orange (c) orange-orange-red (d) orange-orange-orange
  40. 40.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?

Answer key

  1. orange-violet-orange
  2. 49
  3. orange-black-orange
  4. brown-brown-orange
  5. 18
  6. 880
  7. 5 %
  8. 36
  9. red-violet-brown
  10. 86
  11. 9
  12. brown-green-red
  13. the one nearest an end
  14. 4
  15. 5
  16. 3
  17. white-violet-black
  18. 74
  19. 2
  20. 3000
  21. 6
  22. 7600
  23. 900
  24. 9.5
  25. 28
  26. 6.4
  27. 8.8
  28. brown-green-orange
  29. 6.3
  30. 430
  31. 24000
  32. brown-red-red
  33. 210
  34. 6.8
  35. 7
  36. 660
  37. 9.3
  38. 8
  39. orange-orange-orange
  40. 15000

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