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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 790 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-brown (b) white-violet-red (c) violet-white-red (d) violet-white-orange
  2. 2.🌈 In the resistor colour code, which number does grey stand for?
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-black (b) blue-orange-brown (c) orange-blue-red (d) orange-blue-brown
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  13. 13.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) orange-yellow-red (b) yellow-orange-red (c) yellow-orange-brown (d) yellow-orange-orange
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) blue-red-orange (b) blue-red-red (c) red-blue-red (d) blue-red-brown
  17. 17.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-brown (b) green-blue-brown (c) green-green-red (d) green-green-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) violet-brown-orange (b) brown-violet-orange (c) brown-violet-red (d) brown-violet-yellow
  21. 21.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does yellow stand for?
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) green-blue-brown (b) green-blue-black (c) blue-green-black (d) blue-blue-black
  28. 28.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-orange (b) white-orange-yellow (c) white-orange-red (d) orange-white-orange
  37. 37.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does blue stand for?

Answer key

  1. violet-white-red
  2. 8
  3. 5
  4. 290
  5. the one nearest an end
  6. 0
  7. 3.5
  8. 1
  9. 1.6
  10. 64000
  11. orange-blue-brown
  12. 5 %
  13. 160
  14. 2.3
  15. yellow-orange-red
  16. blue-red-red
  17. 1.2
  18. 4.5
  19. green-green-brown
  20. brown-violet-orange
  21. 3.9
  22. 470
  23. 4
  24. 3
  25. 4600
  26. 6.6
  27. green-blue-black
  28. 9.1
  29. 40
  30. 440
  31. 880
  32. 460
  33. 170
  34. 68000
  35. 49
  36. white-orange-orange
  37. 89
  38. 9
  39. 520
  40. 6

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