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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 941 · 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 gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  5. 5.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-yellow (b) grey-grey-red (c) grey-white-orange (d) grey-grey-orange
  9. 9.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-orange (b) brown-green-red (c) brown-green-brown (d) green-brown-red
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) brown-orange-black (b) white-orange-black (c) white-orange-brown (d) orange-white-black
  18. 18.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does green stand for?
  21. 21.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) brown-yellow-orange (b) brown-yellow-brown (c) yellow-brown-red (d) brown-yellow-red
  23. 23.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-orange (b) red-brown-yellow (c) red-brown-red (d) brown-red-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-black-brown (b) white-white-red (c) white-white-black (d) white-white-brown
  26. 26.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) violet-red-black (b) blue-red-brown (c) blue-red-black (d) red-blue-black
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) grey-yellow-orange (b) yellow-grey-yellow (c) yellow-grey-red (d) yellow-grey-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-yellow (b) green-blue-orange (c) green-green-red (d) green-green-orange
  37. 37.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) green-brown-black (b) brown-yellow-black (c) yellow-brown-brown (d) yellow-brown-black
  40. 40.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 1
  3. 2
  4. the one nearest an end
  5. 360
  6. 6200
  7. 310
  8. grey-grey-orange
  9. 2.7
  10. brown-green-red
  11. 3
  12. 73
  13. 50
  14. 8.6
  15. 7.1
  16. 4100
  17. white-orange-black
  18. 6
  19. 60
  20. 5
  21. 43000
  22. brown-yellow-red
  23. 2.9
  24. red-brown-orange
  25. white-white-brown
  26. 27000
  27. 6.3
  28. 950
  29. 10000
  30. blue-red-black
  31. 0
  32. 1.3
  33. 9
  34. 6.8
  35. yellow-grey-orange
  36. green-green-orange
  37. 44
  38. 71000
  39. yellow-brown-black
  40. 57

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