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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 46 · 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 grey, brown, orange. 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) 50 % (d) 5 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-white-red (b) grey-grey-red (c) grey-grey-brown (d) grey-grey-orange
  4. 4.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-orange (b) blue-red-orange (c) red-blue-yellow (d) red-blue-red
  7. 7.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  10. 10.🌈 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
  11. 11.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-red (b) green-black-black (c) blue-green-brown (d) green-black-brown
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-blue-brown (b) blue-blue-black (c) blue-violet-black (d) violet-blue-black
  19. 19.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does blue stand for?
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) orange-red-red (c) red-black-red (d) red-black-brown
  26. 26.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-brown (b) red-green-black (c) red-green-red (d) green-red-brown
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) brown-grey-black (b) grey-white-black (c) white-grey-black (d) white-grey-brown
  31. 31.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does grey stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-yellow (b) grey-white-orange (c) grey-grey-orange (d) grey-grey-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-orange (b) yellow-orange-orange (c) orange-black-red (d) orange-black-yellow
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) white-orange-orange (b) orange-white-orange (c) orange-white-red (d) orange-white-yellow
  36. 36.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does green stand for?
  40. 40.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 81000
  2. 5 %
  3. grey-grey-red
  4. 3.6
  5. 370
  6. red-blue-orange
  7. 2200
  8. 1100
  9. 14000
  10. the one nearest an end
  11. 80
  12. 510
  13. 74
  14. 600
  15. 0
  16. green-black-brown
  17. 7
  18. blue-blue-black
  19. 9300
  20. 1
  21. 19000
  22. 6
  23. 3
  24. 4
  25. red-black-red
  26. 64
  27. red-green-brown
  28. 2
  29. 7.4
  30. white-grey-black
  31. 630
  32. 8
  33. grey-grey-orange
  34. orange-black-orange
  35. orange-white-orange
  36. 9.4
  37. 81
  38. 13
  39. 5
  40. 48

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