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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 896 · 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) 50 % (b) 25 % (c) 5 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) orange-violet-orange (b) violet-orange-yellow (c) violet-orange-red (d) violet-orange-orange
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) yellow-orange-brown (c) orange-black-red (d) orange-black-brown
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-yellow (b) orange-black-orange (c) orange-black-red (d) yellow-orange-orange
  8. 8.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-yellow (b) yellow-orange-orange (c) yellow-orange-red (d) orange-yellow-orange
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-orange (b) brown-white-orange (c) white-brown-yellow (d) white-brown-red
  18. 18.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-brown (b) red-brown-black (c) brown-red-brown (d) red-brown-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) red-blue-brown (b) blue-red-black (c) red-blue-black (d) orange-blue-black
  27. 27.🌈 In the resistor colour code, which number does violet stand for?
  28. 28.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) white-brown-red (b) white-brown-black (c) brown-white-brown (d) white-brown-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-violet-red (b) blue-blue-brown (c) blue-blue-orange (d) blue-blue-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-red (b) brown-blue-yellow (c) blue-brown-orange (d) brown-blue-orange
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) red-orange-brown (c) red-orange-black (d) orange-red-black
  35. 35.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-white-brown (b) grey-grey-brown (c) grey-grey-red (d) grey-grey-black
  37. 37.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does brown stand for?
  40. 40.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 45
  3. violet-orange-orange
  4. orange-black-brown
  5. the one nearest an end
  6. 0
  7. orange-black-orange
  8. 1.7
  9. 860
  10. 8.4
  11. yellow-orange-orange
  12. 4
  13. 60
  14. 8.6
  15. 21
  16. 930
  17. white-brown-orange
  18. 2000
  19. 120
  20. 4.9
  21. 90
  22. 1.1
  23. 4.2
  24. 3300
  25. red-brown-brown
  26. red-blue-black
  27. 7
  28. 90000
  29. 1.2
  30. white-brown-brown
  31. blue-blue-red
  32. brown-blue-orange
  33. 9
  34. red-orange-black
  35. 46000
  36. grey-grey-brown
  37. 7600
  38. 680
  39. 1
  40. 11000

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