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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 288 · 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.

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  1. 1.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-orange (b) orange-brown-red (c) brown-orange-brown (d) brown-orange-red
  3. 3.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-black (b) green-red-brown (c) red-green-red (d) red-green-brown
  5. 5.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  7. 7.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  12. 12.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) violet-green-black (b) green-violet-black (c) blue-violet-black (d) green-violet-brown
  25. 25.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-red (b) blue-brown-brown (c) brown-blue-red (d) blue-brown-orange
  27. 27.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-red (b) yellow-green-orange (c) yellow-yellow-orange (d) yellow-yellow-yellow
  30. 30.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-orange (b) orange-white-brown (c) white-orange-red (d) orange-white-red
  34. 34.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) grey-orange-brown (b) grey-orange-black (c) orange-grey-black (d) white-orange-black
  37. 37.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-brown (b) yellow-violet-black (c) violet-orange-black (d) orange-violet-black
  39. 39.🌈 In the resistor colour code, which number does brown stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) orange-yellow-red (b) yellow-orange-orange (c) yellow-orange-brown (d) yellow-orange-red

Answer key

  1. 2.8
  2. brown-orange-red
  3. 670
  4. red-green-brown
  5. 61
  6. the one nearest an end
  7. 87
  8. 650
  9. 0
  10. 5400
  11. 5 %
  12. 8.3
  13. 450
  14. 5.1
  15. 34000
  16. 160
  17. 8600
  18. 8500
  19. 10
  20. 74
  21. 11000
  22. 18000
  23. 1100
  24. green-violet-black
  25. 3400
  26. blue-brown-red
  27. 520
  28. 6000
  29. yellow-yellow-orange
  30. 480
  31. 9
  32. 58
  33. orange-white-red
  34. 5.6
  35. 840
  36. grey-orange-black
  37. 99000
  38. orange-violet-black
  39. 1
  40. yellow-orange-red

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