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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 158 · 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 blue, brown, brown. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) green-yellow-red (b) green-yellow-brown (c) green-yellow-black (d) yellow-green-brown
  7. 7.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-red (b) red-green-brown (c) green-red-black (d) green-red-brown
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  12. 12.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-black (b) green-black-black (c) yellow-black-brown (d) green-yellow-black
  16. 16.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) yellow-green-orange (b) green-yellow-orange (c) yellow-green-red (d) yellow-green-yellow
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-red (b) orange-violet-orange (c) violet-orange-orange (d) orange-violet-yellow
  20. 20.🌈 In the resistor colour code, which number does red stand for?
  21. 21.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-yellow (b) white-violet-red (c) violet-white-orange (d) white-violet-orange
  23. 23.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-orange (b) red-grey-brown (c) grey-red-red (d) red-grey-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) blue-green-black (b) green-blue-black (c) blue-blue-black (d) green-blue-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-black (b) brown-red-black (c) white-red-brown (d) red-white-black
  27. 27.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-black (b) blue-brown-black (c) green-brown-brown (d) brown-green-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) orange-brown-red (b) brown-orange-red (c) brown-orange-brown (d) brown-orange-orange
  30. 30.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) white-blue-brown (c) brown-blue-black (d) white-blue-black
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-red (b) white-white-black (c) white-black-brown (d) white-white-brown
  36. 36.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?

Answer key

  1. 610
  2. 5 %
  3. 1
  4. 6.9
  5. 6100
  6. green-yellow-brown
  7. 12
  8. green-red-brown
  9. 4
  10. 32
  11. the one nearest an end
  12. 1.4
  13. 49000
  14. 3
  15. yellow-black-black
  16. 350
  17. 5
  18. yellow-green-orange
  19. orange-violet-orange
  20. 2
  21. 9.3
  22. white-violet-orange
  23. 43
  24. red-grey-red
  25. green-blue-black
  26. white-red-black
  27. 92000
  28. green-brown-black
  29. brown-orange-red
  30. 77
  31. 620
  32. 240
  33. 97
  34. white-blue-black
  35. white-white-brown
  36. 990
  37. 2.6
  38. 180
  39. 21
  40. 77000

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