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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 983 · 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 brown, green, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  7. 7.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does violet stand for?
  17. 17.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-orange (b) green-blue-red (c) blue-green-brown (d) blue-green-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-brown (b) green-orange-red (c) green-orange-orange (d) orange-green-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) white-brown-brown (b) brown-white-brown (c) white-brown-red (d) white-brown-black
  22. 22.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-orange (b) red-brown-brown (c) red-brown-red (d) brown-red-red
  25. 25.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does grey stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-red (b) violet-green-orange (c) green-violet-yellow (d) green-violet-orange
  30. 30.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does green stand for?
  32. 32.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) brown-yellow-black (b) yellow-brown-black (c) yellow-brown-brown (d) green-brown-black
  38. 38.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?

Answer key

  1. 1.5
  2. 3500
  3. 6100
  4. 58000
  5. 790
  6. 5 %
  7. 350
  8. 130
  9. the one nearest an end
  10. 9
  11. 1
  12. 9600
  13. 210
  14. 4
  15. 55
  16. 7
  17. 3
  18. 9.5
  19. blue-green-red
  20. green-orange-red
  21. white-brown-brown
  22. 980
  23. 410
  24. red-brown-red
  25. 960
  26. 60
  27. 7200
  28. 8
  29. green-violet-orange
  30. 19
  31. 5
  32. 94
  33. 14
  34. 2
  35. 3.1
  36. 500
  37. yellow-brown-black
  38. 33
  39. 64
  40. 2000

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