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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 858 · 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.🌈 In the resistor colour code, which number does red stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-brown (b) blue-grey-red (c) blue-grey-orange (d) grey-blue-red
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) violet-blue-brown (b) blue-violet-black (c) blue-violet-brown (d) blue-violet-red
  7. 7.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-brown (b) green-black-orange (c) green-black-red (d) blue-green-red
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) orange-red-black (c) red-orange-black (d) red-red-black
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does brown stand for?
  17. 17.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) brown-red-black (b) red-brown-black (c) red-brown-brown (d) orange-brown-black
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) grey-red-orange (b) red-grey-red (c) red-grey-yellow (d) red-grey-orange
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-red (b) grey-blue-brown (c) blue-grey-black (d) blue-grey-brown
  24. 24.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) white-grey-orange (b) grey-black-yellow (c) grey-black-red (d) grey-black-orange
  26. 26.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4700 Ω resistor? (a) yellow-violet-red (b) violet-yellow-red (c) yellow-violet-brown (d) yellow-violet-orange
  28. 28.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) white-violet-red (b) violet-white-brown (c) white-violet-brown (d) white-violet-black
  31. 31.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-red (c) grey-yellow-black (d) grey-yellow-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-brown (b) red-grey-red (c) grey-red-orange (d) grey-red-red
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-violet-black (b) violet-blue-black (c) blue-blue-brown (d) blue-blue-black
  39. 39.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 2
  2. the one nearest an end
  3. 3
  4. 5 %
  5. blue-grey-red
  6. blue-violet-brown
  7. 14
  8. 990
  9. 8600
  10. green-black-red
  11. 0
  12. red-red-black
  13. 5
  14. 89
  15. 520
  16. 1
  17. 1.7
  18. 8.9
  19. 9100
  20. 690
  21. red-brown-black
  22. red-grey-orange
  23. blue-grey-brown
  24. 1.3
  25. grey-black-orange
  26. 7.1
  27. yellow-violet-red
  28. 7700
  29. 35000
  30. white-violet-brown
  31. 810
  32. 9
  33. 8.8
  34. 9
  35. 7
  36. grey-yellow-brown
  37. grey-red-red
  38. blue-blue-black
  39. 90
  40. 4.1

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