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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 382 · 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) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  2. 2.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-red (b) yellow-blue-orange (c) blue-yellow-yellow (d) blue-yellow-orange
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  5. 5.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-red (c) yellow-brown-red (d) yellow-brown-orange
  9. 9.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-red (c) violet-yellow-black (d) violet-yellow-brown
  22. 22.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-orange (b) green-yellow-brown (c) yellow-green-red (d) green-yellow-red
  27. 27.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) orange-green-black (b) green-orange-black (c) green-orange-brown (d) blue-orange-black
  30. 30.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) brown-red-black (b) red-brown-brown (c) red-brown-black (d) orange-brown-black
  34. 34.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) brown-violet-red (b) violet-brown-red (c) violet-brown-orange (d) violet-brown-brown
  37. 37.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-black (b) grey-brown-brown (c) brown-grey-red (d) brown-grey-brown
  39. 39.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 27
  3. blue-yellow-orange
  4. 5 %
  5. 28
  6. 2
  7. 1
  8. yellow-brown-red
  9. 85
  10. 24
  11. 6.8
  12. 3.6
  13. 860
  14. 5
  15. 41
  16. 360
  17. 61
  18. 33000
  19. 1.2
  20. 660
  21. violet-yellow-brown
  22. 9600
  23. 450
  24. 9
  25. 7.1
  26. green-yellow-red
  27. 2
  28. 6
  29. green-orange-black
  30. 76
  31. 98
  32. 7.4
  33. red-brown-black
  34. 96
  35. 11
  36. violet-brown-red
  37. 45
  38. brown-grey-brown
  39. 68
  40. 8.4

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