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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 639 · 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 blue, orange, orange. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  5. 5.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-red (b) red-yellow-yellow (c) yellow-red-orange (d) red-yellow-orange
  7. 7.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, white, black. 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 brown, orange, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-red (b) green-brown-black (c) green-brown-brown (d) brown-green-brown
  15. 15.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) grey-black-red (b) white-grey-orange (c) grey-black-yellow (d) grey-black-orange
  20. 20.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-red (b) yellow-red-red (c) red-yellow-brown (d) red-yellow-orange
  24. 24.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-brown (b) orange-violet-orange (c) violet-orange-red (d) orange-violet-red
  26. 26.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does violet stand for?
  28. 28.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does yellow stand for?
  32. 32.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) white-orange-black (c) yellow-white-black (d) orange-white-black
  34. 34.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) red-brown-black (c) brown-brown-black (d) brown-brown-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) orange-blue-black (b) violet-orange-black (c) blue-orange-brown (d) blue-orange-black
  40. 40.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 63000
  2. 2
  3. 68000
  4. 5 %
  5. 440
  6. red-yellow-orange
  7. 4.6
  8. 29
  9. 0
  10. 130
  11. 9.5
  12. 35
  13. 25
  14. green-brown-brown
  15. 9000
  16. 130
  17. 5
  18. the one nearest an end
  19. grey-black-orange
  20. 590
  21. 60
  22. 250
  23. red-yellow-red
  24. 21
  25. orange-violet-red
  26. 70
  27. 7
  28. 800
  29. 39
  30. 810
  31. 4
  32. 95
  33. orange-white-black
  34. 3100
  35. 9
  36. 1
  37. 5100
  38. brown-brown-black
  39. blue-orange-black
  40. 620

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