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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 523 · 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 grey, white, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  3. 3.🌈 In the resistor colour code, which number does yellow stand for?
  4. 4.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does blue stand for?
  6. 6.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-black (b) orange-grey-black (c) grey-red-black (d) red-grey-brown
  9. 9.🌈 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
  10. 10.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-red (b) brown-red-brown (c) red-brown-black (d) red-brown-brown
  16. 16.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-yellow (b) violet-brown-orange (c) brown-violet-red (d) brown-violet-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18000 Ω resistor? (a) brown-grey-red (b) brown-grey-yellow (c) brown-grey-orange (d) grey-brown-orange
  19. 19.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-orange (b) red-white-brown (c) white-red-red (d) red-white-red
  21. 21.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-red (b) white-black-brown (c) white-white-black (d) white-white-brown
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) orange-red-brown (b) red-orange-black (c) red-orange-brown (d) red-orange-red
  32. 32.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does red stand for?
  38. 38.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does green stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) yellow-green-red (b) green-yellow-brown (c) green-yellow-red (d) green-yellow-orange

Answer key

  1. 89
  2. 5 %
  3. 4
  4. 11
  5. 6
  6. 70
  7. 190
  8. red-grey-black
  9. the one nearest an end
  10. 3.8
  11. 2500
  12. 6.3
  13. 8
  14. 26
  15. red-brown-brown
  16. 280
  17. brown-violet-orange
  18. brown-grey-orange
  19. 38
  20. red-white-red
  21. 73000
  22. 80
  23. 2200
  24. 12
  25. 880
  26. 12000
  27. white-white-brown
  28. 0
  29. 660
  30. 18000
  31. red-orange-brown
  32. 710
  33. 66
  34. 1
  35. 4.2
  36. 150
  37. 2
  38. 92000
  39. 5
  40. green-yellow-red

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