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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 252 · 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.🌈 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
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) brown-orange-brown (c) orange-brown-black (d) orange-brown-brown
  3. 3.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-orange (b) white-black-red (c) white-white-brown (d) white-white-red
  6. 6.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89 Ω resistor? (a) white-white-black (b) grey-white-black (c) grey-white-brown (d) white-grey-black
  8. 8.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  11. 11.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) red-green-black (b) green-brown-black (c) brown-green-black (d) brown-green-brown
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) red-orange-black (c) red-red-black (d) orange-red-black
  14. 14.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does brown stand for?
  17. 17.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 In the resistor colour code, which number does green stand for?
  28. 28.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 In the resistor colour code, which number does yellow stand for?
  32. 32.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) grey-violet-brown (b) violet-black-brown (c) violet-black-red (d) violet-black-black
  34. 34.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) yellow-white-brown (b) yellow-white-black (c) yellow-white-red (d) white-yellow-brown
  39. 39.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. orange-brown-brown
  3. 19
  4. 27
  5. white-white-red
  6. 16000
  7. grey-white-black
  8. 3
  9. 50000
  10. 5 %
  11. 2200
  12. brown-green-black
  13. red-red-black
  14. 19
  15. 42000
  16. 1
  17. 320
  18. 5700
  19. 7.4
  20. 570
  21. 790
  22. 34000
  23. 6
  24. 3
  25. 59
  26. 0
  27. 5
  28. 380
  29. 960
  30. 2
  31. 4
  32. 9.7
  33. violet-black-brown
  34. 17
  35. 4.1
  36. 12000
  37. 64000
  38. yellow-white-brown
  39. 160
  40. 1.7

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