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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 79 · 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) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  2. 2.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) white-violet-brown (c) white-violet-black (d) brown-violet-black
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) yellow-red-brown (b) green-red-black (c) red-yellow-black (d) yellow-red-black
  10. 10.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does violet stand for?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  15. 15.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-black (b) red-brown-black (c) red-red-black (d) brown-red-brown
  18. 18.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-red (b) blue-red-red (c) red-blue-brown (d) red-blue-orange
  23. 23.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-orange (b) yellow-yellow-brown (c) yellow-yellow-red (d) yellow-green-red
  26. 26.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) violet-orange-brown (b) orange-violet-black (c) grey-orange-black (d) violet-orange-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) brown-blue-black (c) white-blue-brown (d) white-blue-black
  29. 29.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) green-yellow-black (c) yellow-green-brown (d) green-green-black
  34. 34.🌈 In the resistor colour code, which number does green stand for?
  35. 35.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-yellow (b) grey-yellow-orange (c) grey-yellow-red (d) yellow-grey-orange
  37. 37.🌈 In the resistor colour code, which number does black stand for?
  38. 38.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-orange-orange (b) red-red-red (c) red-red-orange (d) red-red-yellow
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-red (c) yellow-brown-orange (d) brown-yellow-red

Answer key

  1. the one nearest an end
  2. 890
  3. 530
  4. 4
  5. white-violet-black
  6. 2
  7. 18
  8. 5400
  9. yellow-red-black
  10. 230
  11. 330
  12. 7.6
  13. 7
  14. 5 %
  15. 3200
  16. 920
  17. brown-red-black
  18. 2.4
  19. 1
  20. 10
  21. 25000
  22. red-blue-red
  23. 580
  24. 36
  25. yellow-yellow-red
  26. 860
  27. violet-orange-black
  28. white-blue-black
  29. 200
  30. 5500
  31. 9
  32. 5100
  33. yellow-green-black
  34. 5
  35. 23
  36. grey-yellow-orange
  37. 0
  38. 14
  39. red-red-orange
  40. yellow-brown-red

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