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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 111 · 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.

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  1. 1.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  3. 3.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-white-orange (b) grey-grey-orange (c) grey-grey-red (d) grey-grey-yellow
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does brown stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) brown-blue-black (b) brown-blue-brown (c) blue-brown-black (d) red-blue-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) green-red-brown (b) red-green-red (c) red-green-black (d) red-green-brown
  19. 19.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77000 Ω resistor? (a) violet-violet-red (b) violet-violet-yellow (c) violet-violet-orange (d) violet-grey-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) grey-brown-brown (b) grey-brown-red (c) brown-grey-brown (d) grey-brown-black
  28. 28.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-orange (b) violet-violet-brown (c) violet-grey-red (d) violet-violet-red
  30. 30.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-black (b) white-brown-brown (c) brown-brown-black (d) brown-white-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-orange (c) grey-black-red (d) grey-black-brown
  38. 38.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-orange (b) white-violet-orange (c) violet-white-yellow (d) violet-white-red
  40. 40.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?

Answer key

  1. 8.4
  2. the one nearest an end
  3. 440
  4. 5 %
  5. grey-grey-orange
  6. 2
  7. 92
  8. 6.9
  9. 24000
  10. 3.9
  11. 120
  12. 70
  13. 86
  14. 51
  15. 8100
  16. 1
  17. brown-blue-black
  18. red-green-brown
  19. 15
  20. 35
  21. 32
  22. 140
  23. 98
  24. 20
  25. 0
  26. violet-violet-orange
  27. grey-brown-brown
  28. 460
  29. violet-violet-red
  30. 2300
  31. 37000
  32. 22
  33. 8
  34. 4.5
  35. 500
  36. white-brown-black
  37. grey-black-red
  38. 56
  39. violet-white-orange
  40. 36

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