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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 712 · 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 orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-red (b) red-brown-brown (c) red-brown-black (d) brown-red-brown
  3. 3.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 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
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-orange (b) red-orange-brown (c) red-orange-red (d) orange-red-red
  6. 6.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76 Ω resistor? (a) violet-blue-brown (b) violet-blue-black (c) blue-violet-black (d) grey-blue-black
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) orange-violet-black (b) violet-orange-brown (c) violet-orange-black (d) grey-orange-black
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-brown (b) orange-violet-black (c) violet-orange-brown (d) orange-violet-red
  18. 18.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-orange (b) red-red-red (c) red-orange-orange (d) red-red-yellow
  20. 20.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  21. 21.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) green-orange-black (b) orange-green-black (c) green-orange-brown (d) blue-orange-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-orange (b) orange-grey-red (c) grey-orange-orange (d) orange-grey-yellow
  26. 26.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-black (b) green-green-red (c) green-green-brown (d) green-blue-brown
  28. 28.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-orange (b) white-yellow-red (c) white-yellow-brown (d) yellow-white-red
  30. 30.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-red (b) green-green-yellow (c) green-blue-orange (d) green-green-orange
  32. 32.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-red (b) green-grey-black (c) grey-green-brown (d) green-grey-brown
  34. 34.🌈 In the resistor colour code, which number does grey stand for?
  35. 35.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-brown (b) white-grey-black (c) grey-white-brown (d) white-grey-red
  37. 37.🌈 In the resistor colour code, which number does yellow stand for?
  38. 38.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?

Answer key

  1. 37
  2. red-brown-brown
  3. 820
  4. the one nearest an end
  5. red-orange-red
  6. 5.1
  7. 33
  8. 79000
  9. 94
  10. 6
  11. 9
  12. violet-blue-black
  13. 1
  14. violet-orange-black
  15. 2
  16. 790
  17. orange-violet-brown
  18. 41
  19. red-red-orange
  20. 5 %
  21. 1900
  22. 190
  23. 2.9
  24. green-orange-black
  25. orange-grey-orange
  26. 560
  27. green-green-brown
  28. 90
  29. white-yellow-red
  30. 63
  31. green-green-orange
  32. 76
  33. green-grey-brown
  34. 8
  35. 9.1
  36. white-grey-brown
  37. 4
  38. 2100
  39. 970
  40. 42000

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