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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 844 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-brown (b) yellow-orange-red (c) orange-yellow-orange (d) orange-yellow-red
  3. 3.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does blue stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-red (b) blue-grey-orange (c) grey-blue-yellow (d) grey-blue-orange
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-orange (b) red-orange-orange (c) red-red-yellow (d) red-red-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) white-black-brown (b) white-black-black (c) brown-white-black (d) brown-black-black
  9. 9.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) white-red-black (b) red-white-brown (c) red-white-black (d) orange-white-black
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) blue-grey-black (b) green-grey-black (c) grey-green-black (d) green-grey-brown
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 860 Ω resistor? (a) blue-grey-brown (b) grey-blue-red (c) grey-blue-black (d) grey-blue-brown
  20. 20.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does black stand for?
  28. 28.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, white, red. 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 green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-orange (c) violet-red-red (d) violet-red-yellow
  36. 36.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?

Answer key

  1. 5 %
  2. orange-yellow-red
  3. 140
  4. 53
  5. 6
  6. grey-blue-orange
  7. red-red-orange
  8. white-black-black
  9. the one nearest an end
  10. red-white-black
  11. 1
  12. 78
  13. 18000
  14. green-grey-black
  15. 2
  16. 1.5
  17. 3100
  18. 950
  19. grey-blue-brown
  20. 39
  21. 89
  22. 35
  23. 3
  24. 12
  25. 300
  26. 53
  27. 0
  28. 190
  29. 950
  30. 99
  31. 480
  32. 2.9
  33. 8
  34. 520
  35. violet-red-orange
  36. 21000
  37. 580
  38. 46000
  39. 19
  40. 6100

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