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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 651 · 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 white, blue, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-red (b) green-orange-orange (c) orange-green-yellow (d) orange-green-orange
  4. 4.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-red (c) brown-yellow-orange (d) brown-yellow-red
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-red (b) orange-red-brown (c) orange-red-orange (d) red-orange-red
  7. 7.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-brown (b) orange-brown-red (c) orange-brown-black (d) brown-orange-brown
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) orange-brown-brown (b) brown-orange-brown (c) brown-orange-red (d) brown-orange-black
  14. 14.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) blue-white-red (b) white-blue-orange (c) white-blue-brown (d) white-blue-red
  16. 16.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  17. 17.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) orange-grey-orange (b) grey-orange-red (c) grey-orange-yellow (d) grey-orange-orange
  20. 20.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-brown (b) violet-blue-orange (c) blue-violet-red (d) violet-blue-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) green-grey-black (c) blue-grey-black (d) grey-green-black
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does red stand for?
  28. 28.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) white-orange-orange (c) orange-white-orange (d) white-orange-yellow
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 In the resistor colour code, which number does yellow stand for?
  32. 32.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) grey-red-orange (c) grey-red-red (d) red-grey-orange
  35. 35.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) brown-brown-black (c) red-brown-black (d) brown-brown-brown
  38. 38.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 96000
  2. 95
  3. orange-green-orange
  4. 1.8
  5. brown-yellow-red
  6. orange-red-red
  7. 450
  8. orange-brown-brown
  9. 6
  10. 36
  11. 99000
  12. 7800
  13. brown-orange-brown
  14. 13000
  15. white-blue-red
  16. the one nearest an end
  17. 4.9
  18. 5 %
  19. grey-orange-orange
  20. 790
  21. 4.7
  22. violet-blue-red
  23. green-grey-black
  24. 5
  25. 0
  26. 8300
  27. 2
  28. 1.5
  29. white-orange-orange
  30. 3
  31. 4
  32. 1
  33. 29000
  34. grey-red-orange
  35. 8.5
  36. 93000
  37. brown-brown-black
  38. 6800
  39. 16
  40. 2.5

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