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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 968 · 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.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  3. 3.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) green-brown-red (b) brown-green-orange (c) brown-green-brown (d) brown-green-red
  13. 13.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-brown (b) blue-white-black (c) white-blue-brown (d) blue-white-red
  15. 15.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-brown (b) yellow-black-black (c) yellow-orange-black (d) orange-black-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-brown (b) violet-blue-black (c) blue-violet-black (d) violet-violet-black
  19. 19.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, grey, black. 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.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-red (b) grey-red-black (c) grey-red-brown (d) red-grey-brown
  25. 25.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-yellow (b) orange-green-orange (c) green-orange-red (d) green-orange-orange
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) yellow-red-brown (b) red-yellow-red (c) red-yellow-brown (d) red-yellow-black
  31. 31.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, white, red. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does green stand for?
  36. 36.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 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
  39. 39.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 7300
  2. 5 %
  3. 960
  4. the one nearest an end
  5. 0
  6. 810
  7. 2
  8. 14
  9. 4
  10. 7
  11. 1200
  12. brown-green-red
  13. 380
  14. blue-white-brown
  15. 2.4
  16. 73000
  17. orange-black-black
  18. blue-violet-black
  19. 10000
  20. 29
  21. 78
  22. 18000
  23. 1
  24. grey-red-brown
  25. 26
  26. 420
  27. 2800
  28. 6.2
  29. green-orange-orange
  30. red-yellow-brown
  31. 520
  32. 28000
  33. 24
  34. 4900
  35. 5
  36. 7100
  37. 3
  38. brown-orange-red
  39. 290
  40. 3.7

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