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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 203 · 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 orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  8. 8.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  9. 9.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) yellow-green-red (b) yellow-green-yellow (c) green-yellow-orange (d) yellow-green-orange
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) green-white-brown (b) white-green-brown (c) white-green-red (d) white-green-black
  14. 14.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-brown (b) orange-green-black (c) yellow-green-black (d) green-orange-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) grey-violet-black (b) violet-violet-brown (c) violet-grey-black (d) violet-violet-black
  21. 21.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, 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 blue, orange, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-black (b) red-orange-brown (c) red-red-red (d) red-red-brown
  28. 28.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) brown-white-brown (b) white-black-black (c) white-black-red (d) white-black-brown
  30. 30.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54000 Ω resistor? (a) green-yellow-orange (b) green-yellow-red (c) yellow-green-orange (d) green-yellow-yellow
  35. 35.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-black (b) yellow-brown-brown (c) brown-yellow-brown (d) brown-yellow-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) blue-violet-red (b) violet-blue-orange (c) violet-blue-brown (d) violet-blue-red
  38. 38.🌈 In the resistor colour code, which number does red stand for?
  39. 39.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does white stand for?

Answer key

  1. 33
  2. 71
  3. 32000
  4. 580
  5. 0
  6. 270
  7. 5 %
  8. the one nearest an end
  9. 25000
  10. 970
  11. yellow-green-orange
  12. 1
  13. white-green-brown
  14. 860
  15. 96
  16. 90
  17. 1400
  18. 170
  19. orange-green-black
  20. violet-violet-black
  21. 13
  22. 1.5
  23. 4100
  24. 63
  25. 980
  26. 410
  27. red-red-brown
  28. 22
  29. white-black-brown
  30. 690
  31. 220
  32. 460
  33. 8.7
  34. green-yellow-orange
  35. 27
  36. brown-yellow-brown
  37. violet-blue-red
  38. 2
  39. 310
  40. 9

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