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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 485 · 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 band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-red (b) brown-violet-black (c) brown-violet-brown (d) violet-brown-brown
  9. 9.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-brown (b) red-brown-black (c) brown-red-black (d) brown-brown-black
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) white-yellow-red (b) yellow-white-brown (c) yellow-white-orange (d) yellow-white-red
  16. 16.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-red (b) red-white-brown (c) red-white-black (d) white-red-brown
  18. 18.🌈 In the resistor colour code, which number does orange stand for?
  19. 19.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 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
  22. 22.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 In the resistor colour code, which number does yellow stand for?
  28. 28.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-orange (b) green-red-red (c) green-red-yellow (d) red-green-orange
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) white-violet-black (c) white-violet-brown (d) brown-violet-black
  31. 31.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does violet stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98000 Ω resistor? (a) white-grey-orange (b) white-grey-red (c) white-grey-yellow (d) grey-white-orange
  36. 36.🌈 In the resistor colour code, which number does black stand for?
  37. 37.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-black (b) orange-green-red (c) green-orange-brown (d) orange-green-brown
  40. 40.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5 %
  3. 3200
  4. 9
  5. 27000
  6. 93000
  7. 6
  8. brown-violet-brown
  9. 8.7
  10. 8300
  11. 2300
  12. 3.6
  13. 8
  14. brown-brown-black
  15. yellow-white-red
  16. 1800
  17. red-white-brown
  18. 3
  19. 7300
  20. 3.5
  21. orange-brown-brown
  22. 780
  23. 20
  24. 18
  25. 630
  26. 2
  27. 4
  28. 410
  29. green-red-orange
  30. white-violet-black
  31. 51
  32. 17
  33. 21
  34. 7
  35. white-grey-orange
  36. 0
  37. 7.9
  38. 230
  39. orange-green-brown
  40. 76

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