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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 738 · 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) 0 % (c) 25 % (d) 50 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8900 Ω resistor? (a) grey-white-brown (b) grey-white-orange (c) grey-white-red (d) white-grey-red
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) red-green-orange (b) green-red-yellow (c) green-red-red (d) green-red-orange
  7. 7.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) blue-violet-black (b) green-violet-brown (c) violet-green-black (d) green-violet-black
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-red (b) grey-grey-yellow (c) grey-grey-orange (d) grey-white-orange
  14. 14.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-red (b) yellow-green-black (c) yellow-green-brown (d) green-yellow-brown
  18. 18.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) grey-black-yellow (b) grey-black-orange (c) white-grey-orange (d) grey-black-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) white-blue-orange (b) blue-white-yellow (c) blue-white-red (d) blue-white-orange
  21. 21.🌈 In the resistor colour code, which number does yellow stand for?
  22. 22.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-red (b) blue-brown-orange (c) blue-brown-brown (d) brown-blue-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 620 Ω resistor? (a) blue-red-black (b) blue-red-red (c) red-blue-brown (d) blue-red-brown
  27. 27.🌈 In the resistor colour code, which number does black stand for?
  28. 28.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does violet stand for?
  32. 32.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-yellow (b) red-brown-red (c) red-brown-orange (d) brown-red-orange
  34. 34.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) red-black-orange (c) red-black-brown (d) orange-red-red
  36. 36.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does orange stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) orange-blue-red (c) orange-blue-orange (d) blue-orange-orange
  39. 39.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-yellow-black (b) yellow-green-black (c) green-green-black (d) yellow-green-brown

Answer key

  1. 5 %
  2. grey-white-red
  3. 2
  4. 510
  5. the one nearest an end
  6. green-red-orange
  7. 87
  8. 2900
  9. green-violet-black
  10. 1
  11. 9300
  12. 17
  13. grey-grey-orange
  14. 260
  15. 73000
  16. 360
  17. yellow-green-brown
  18. 79000
  19. grey-black-orange
  20. blue-white-orange
  21. 4
  22. 6200
  23. 71000
  24. 39000
  25. blue-brown-red
  26. blue-red-brown
  27. 0
  28. 7.2
  29. 11
  30. 290
  31. 7
  32. 58000
  33. red-brown-orange
  34. 62
  35. red-black-red
  36. 38
  37. 3
  38. orange-blue-orange
  39. 240
  40. yellow-green-black

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