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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 219 · 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) the one nearest an end (c) the widest gap (d) any band
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) blue-grey-red (b) grey-blue-orange (c) blue-grey-yellow (d) blue-grey-orange
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-red (b) white-red-yellow (c) white-red-orange (d) red-white-orange
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-red (b) red-violet-red (c) violet-red-orange (d) violet-red-brown
  27. 27.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-orange (b) grey-orange-yellow (c) grey-orange-red (d) orange-grey-orange
  29. 29.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) violet-white-red (b) white-violet-orange (c) white-violet-red (d) white-violet-brown
  31. 31.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-orange (b) green-yellow-brown (c) green-yellow-red (d) yellow-green-red
  36. 36.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-green-black (b) green-green-brown (c) green-blue-black (d) blue-green-black
  40. 40.🌈 In the resistor colour code, which number does blue stand for?

Answer key

  1. the one nearest an end
  2. 4
  3. 6.8
  4. 14000
  5. blue-grey-orange
  6. 3
  7. 54000
  8. white-red-orange
  9. 5 %
  10. 2
  11. 84
  12. 9400
  13. 660
  14. 35
  15. 96
  16. 5
  17. 84
  18. 0
  19. 4.1
  20. 730
  21. 660
  22. 9.5
  23. 4100
  24. 8.7
  25. 880
  26. violet-red-red
  27. 440
  28. grey-orange-orange
  29. 2.4
  30. white-violet-red
  31. 99000
  32. 27
  33. 51
  34. 9
  35. green-yellow-red
  36. 250
  37. 52
  38. 19
  39. green-green-black
  40. 6

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