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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 947 · 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.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-red (b) red-white-red (c) white-red-orange (d) white-red-brown
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 In the resistor colour code, which number does white stand for?
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  11. 11.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) orange-brown-black (b) brown-red-black (c) red-brown-brown (d) red-brown-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-red (b) brown-green-brown (c) green-brown-black (d) green-brown-brown
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-black (b) red-white-brown (c) orange-white-black (d) white-red-black
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-brown (b) red-orange-black (c) orange-brown-black (d) brown-orange-black
  18. 18.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-black (b) brown-white-brown (c) white-black-red (d) white-black-brown
  24. 24.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-red (b) grey-orange-orange (c) grey-orange-brown (d) orange-grey-red
  26. 26.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, brown, red. 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.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does red stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-orange (b) grey-violet-orange (c) violet-grey-yellow (d) violet-grey-red
  33. 33.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) red-orange-brown (b) orange-red-red (c) orange-red-black (d) orange-red-brown
  35. 35.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-red (b) brown-white-orange (c) white-brown-orange (d) brown-white-yellow
  38. 38.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 59000
  2. 86
  3. 63
  4. white-red-red
  5. 1
  6. 9
  7. 4
  8. 5 %
  9. 5
  10. the one nearest an end
  11. 770
  12. red-brown-black
  13. green-brown-brown
  14. red-white-black
  15. 8
  16. 1300
  17. brown-orange-black
  18. 47
  19. 6.2
  20. 2100
  21. 69
  22. 0
  23. white-black-brown
  24. 60
  25. grey-orange-red
  26. 310
  27. 700
  28. 5.1
  29. 960
  30. 60000
  31. 2
  32. violet-grey-orange
  33. 800
  34. orange-red-brown
  35. 5900
  36. 3.7
  37. brown-white-orange
  38. 58
  39. 8.2
  40. 380

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