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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 65 · 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 7000 Ω resistor? (a) violet-black-orange (b) grey-violet-red (c) violet-black-red (d) violet-black-brown
  2. 2.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does grey stand for?
  4. 4.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) brown-orange-brown (b) orange-brown-red (c) orange-brown-brown (d) orange-brown-black
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  7. 7.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  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 3200 Ω resistor? (a) orange-red-red (b) orange-red-orange (c) red-orange-red (d) orange-red-brown
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-red (b) violet-white-orange (c) violet-white-brown (d) white-violet-red
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) orange-green-brown (b) green-orange-brown (c) green-orange-red (d) green-orange-black
  17. 17.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-brown (b) orange-red-red (c) red-orange-brown (d) orange-red-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) orange-brown-red (b) brown-orange-brown (c) brown-orange-red (d) brown-orange-orange
  20. 20.🌈 In the resistor colour code, which number does green stand for?
  21. 21.🌈 In the resistor colour code, which number does orange stand for?
  22. 22.🌈 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
  23. 23.🌈 A resistor has the colour bands grey, yellow, red. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-red (b) orange-grey-brown (c) orange-grey-black (d) grey-orange-brown
  26. 26.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) green-yellow-brown (b) yellow-black-brown (c) yellow-black-red (d) yellow-black-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-yellow (b) violet-grey-orange (c) grey-violet-orange (d) violet-grey-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) orange-grey-brown (b) grey-orange-red (c) grey-orange-black (d) grey-orange-brown
  31. 31.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-red (b) red-red-yellow (c) red-orange-orange (d) red-red-orange
  37. 37.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-white-red (b) grey-grey-brown (c) grey-grey-orange (d) grey-grey-red

Answer key

  1. violet-black-red
  2. 160
  3. 8
  4. 5300
  5. orange-brown-brown
  6. 5 %
  7. 51
  8. 7
  9. orange-red-red
  10. 6
  11. 640
  12. 35
  13. violet-white-red
  14. 9
  15. 82
  16. green-orange-brown
  17. 49
  18. orange-red-brown
  19. brown-orange-red
  20. 5
  21. 3
  22. the one nearest an end
  23. 8400
  24. 2
  25. orange-grey-brown
  26. 8.2
  27. 4.6
  28. yellow-black-brown
  29. violet-grey-orange
  30. grey-orange-brown
  31. 3300
  32. 430
  33. 90000
  34. 57
  35. 300
  36. red-red-orange
  37. 60000
  38. 870
  39. 12000
  40. grey-grey-red

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