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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 856 · 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 widest gap (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  5. 5.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) blue-red-black (b) green-red-brown (c) green-red-black (d) red-green-black
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-brown (b) red-grey-black (c) orange-grey-black (d) grey-red-black
  11. 11.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) blue-yellow-brown (b) violet-yellow-black (c) blue-yellow-black (d) yellow-blue-black
  14. 14.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) green-red-orange (b) green-red-brown (c) green-red-red (d) red-green-red
  17. 17.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-red (b) grey-red-brown (c) red-grey-red (d) grey-red-orange
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) red-brown-brown (b) brown-red-red (c) brown-red-black (d) brown-red-brown
  23. 23.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 860 Ω resistor? (a) grey-blue-black (b) blue-grey-brown (c) grey-blue-brown (d) grey-blue-red
  26. 26.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-red (c) blue-yellow-yellow (d) yellow-blue-orange
  29. 29.🌈 In the resistor colour code, which number does black stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) green-yellow-black (b) yellow-yellow-brown (c) yellow-green-black (d) yellow-yellow-black
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) blue-orange-black (b) green-orange-brown (c) green-orange-black (d) orange-green-black
  32. 32.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) orange-brown-brown (b) brown-orange-black (c) brown-orange-red (d) brown-orange-brown
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-black (b) white-orange-black (c) yellow-white-black (d) orange-white-brown
  36. 36.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-yellow-orange (b) orange-orange-yellow (c) orange-orange-orange (d) orange-orange-red
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. the one nearest an end
  2. 25
  3. 3
  4. 5 %
  5. 390
  6. 83
  7. 64
  8. green-red-black
  9. 4
  10. red-grey-black
  11. 30
  12. 33
  13. blue-yellow-black
  14. 4.6
  15. 2.2
  16. green-red-red
  17. 480
  18. 1.6
  19. 1.3
  20. grey-red-red
  21. 9
  22. brown-red-brown
  23. 66
  24. 54
  25. grey-blue-brown
  26. 39
  27. 3.2
  28. blue-yellow-orange
  29. 0
  30. yellow-yellow-black
  31. green-orange-black
  32. 9.3
  33. 360
  34. brown-orange-brown
  35. orange-white-black
  36. 79000
  37. 8600
  38. 98
  39. orange-orange-orange
  40. 2

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