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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 442 · 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 black stand for?
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 620 Ω resistor? (a) blue-red-brown (b) blue-red-black (c) red-blue-brown (d) blue-red-red
  5. 5.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-brown (b) orange-violet-black (c) orange-violet-red (d) violet-orange-brown
  7. 7.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-red (b) orange-black-brown (c) yellow-orange-brown (d) orange-black-black
  11. 11.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-orange (b) brown-red-orange (c) red-brown-red (d) red-brown-yellow
  14. 14.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does orange stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-brown (b) white-white-red (c) white-black-red (d) white-white-orange
  18. 18.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) grey-yellow-yellow (c) grey-yellow-orange (d) yellow-grey-orange
  22. 22.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-red (b) green-white-orange (c) white-green-orange (d) green-white-yellow
  25. 25.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does yellow stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-violet-red (b) blue-blue-orange (c) blue-blue-brown (d) blue-blue-red
  29. 29.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-yellow (b) white-blue-orange (c) blue-white-red (d) blue-white-orange
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-red (b) grey-black-brown (c) grey-black-black (d) white-grey-brown
  34. 34.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) brown-grey-orange (b) grey-brown-orange (c) grey-brown-red (d) grey-brown-yellow
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-red (b) orange-orange-black (c) orange-orange-brown (d) orange-yellow-brown
  37. 37.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) red-grey-orange (b) grey-red-orange (c) grey-red-red (d) grey-red-yellow
  39. 39.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-brown-black (b) red-red-black (c) brown-red-brown (d) brown-red-black

Answer key

  1. 0
  2. 2
  3. 35000
  4. blue-red-brown
  5. 2600
  6. orange-violet-brown
  7. 9.8
  8. 5 %
  9. 1
  10. orange-black-brown
  11. 650
  12. the one nearest an end
  13. red-brown-orange
  14. 46
  15. 380
  16. 3
  17. white-white-red
  18. 4.6
  19. 410
  20. 36
  21. grey-yellow-orange
  22. 64
  23. 7200
  24. green-white-orange
  25. 550
  26. 30000
  27. 4
  28. blue-blue-red
  29. 3500
  30. 79000
  31. 4.4
  32. blue-white-orange
  33. grey-black-brown
  34. 9400
  35. grey-brown-orange
  36. orange-orange-brown
  37. 57
  38. grey-red-orange
  39. 9.4
  40. brown-red-black

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