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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 387 · 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 gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) violet-red-black (b) red-violet-brown (c) orange-violet-black (d) red-violet-black
  3. 3.🌈 In the resistor colour code, which number does yellow stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) violet-red-black (b) red-violet-black (c) grey-red-black (d) violet-red-brown
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-yellow (b) green-orange-orange (c) green-orange-red (d) orange-green-orange
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-black (b) orange-yellow-red (c) yellow-orange-brown (d) orange-yellow-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) red-orange-black (c) orange-red-black (d) red-red-black
  13. 13.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) blue-red-red (b) red-blue-red (c) red-blue-orange (d) red-blue-brown
  17. 17.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) orange-red-red (c) red-black-brown (d) red-black-orange
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) orange-blue-brown (c) orange-blue-red (d) blue-orange-red
  23. 23.🌈 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
  24. 24.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4700 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-red (c) yellow-violet-orange (d) yellow-violet-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-brown (b) violet-grey-brown (c) violet-violet-red (d) violet-violet-black
  29. 29.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) brown-grey-brown (b) grey-brown-brown (c) grey-brown-red (d) grey-brown-black
  31. 31.🌈 In the resistor colour code, which number does orange stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-brown (b) white-white-red (c) white-black-red (d) white-white-orange
  33. 33.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-black (b) white-white-red (c) white-black-brown (d) white-white-brown
  39. 39.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. 5 %
  2. red-violet-black
  3. 4
  4. violet-red-black
  5. 1
  6. 2.3
  7. 98000
  8. 4
  9. 0
  10. green-orange-orange
  11. orange-yellow-brown
  12. red-red-black
  13. 6.8
  14. 8
  15. 2.5
  16. red-blue-red
  17. 110
  18. 92
  19. 520
  20. 280
  21. red-black-red
  22. orange-blue-red
  23. the one nearest an end
  24. 340
  25. 87
  26. 5.8
  27. yellow-violet-red
  28. violet-violet-brown
  29. 160
  30. grey-brown-brown
  31. 3
  32. white-white-red
  33. 990
  34. 6.7
  35. 88
  36. 460
  37. 370
  38. white-white-brown
  39. 750
  40. 2

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