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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 956 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) white-black-brown (b) brown-white-black (c) white-black-black (d) brown-black-black
  2. 2.🌈 In the resistor colour code, which number does grey stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-orange (c) violet-orange-red (d) violet-orange-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-red (c) orange-yellow-brown (d) orange-yellow-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) blue-brown-red (c) brown-blue-red (d) blue-brown-brown
  6. 6.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  10. 10.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does white stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-red (b) violet-blue-orange (c) blue-black-orange (d) blue-black-yellow
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-black (b) blue-white-red (c) blue-white-brown (d) white-blue-brown
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-black (c) brown-orange-brown (d) orange-brown-black
  20. 20.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, white, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-red (b) grey-white-orange (c) grey-grey-yellow (d) grey-grey-orange
  28. 28.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does orange stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-brown (b) grey-orange-red (c) orange-grey-orange (d) orange-grey-red
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) grey-green-orange (b) green-grey-red (c) green-grey-orange (d) green-grey-yellow
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-red (b) red-red-yellow (c) red-orange-orange (d) red-red-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-red (b) grey-green-brown (c) green-grey-black (d) green-grey-brown
  38. 38.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) green-white-black (b) blue-white-black (c) white-green-black (d) green-white-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-yellow (b) white-green-orange (c) green-white-red (d) green-white-orange

Answer key

  1. white-black-black
  2. 8
  3. violet-orange-red
  4. orange-yellow-red
  5. blue-brown-red
  6. 23
  7. 9500
  8. the one nearest an end
  9. 5 %
  10. 3300
  11. 50
  12. 6900
  13. 9
  14. blue-black-orange
  15. 7
  16. 0
  17. 880
  18. blue-white-brown
  19. brown-orange-black
  20. 780
  21. 4900
  22. 23
  23. 1
  24. 300
  25. 2.9
  26. 2
  27. grey-grey-orange
  28. 12
  29. 38
  30. 230
  31. 3
  32. orange-grey-red
  33. 6
  34. 6.4
  35. green-grey-orange
  36. red-red-orange
  37. green-grey-brown
  38. 52
  39. green-white-black
  40. green-white-orange

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