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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 167 · 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.🌈 In the resistor colour code, which number does white stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  3. 3.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does red stand for?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) grey-green-red (b) green-grey-red (c) grey-green-orange (d) grey-green-brown
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) blue-black-black (b) green-black-brown (c) green-black-black (d) blue-green-black
  11. 11.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-brown (b) orange-black-black (c) yellow-orange-brown (d) orange-black-red
  15. 15.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-black (b) red-black-brown (c) orange-black-black (d) orange-red-black
  20. 20.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does violet stand for?
  23. 23.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) violet-orange-red (b) violet-orange-yellow (c) orange-violet-orange (d) violet-orange-orange
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-black (b) violet-grey-red (c) grey-violet-brown (d) violet-grey-brown
  28. 28.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) blue-orange-black (b) green-orange-black (c) green-orange-brown (d) orange-green-black
  30. 30.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does blue stand for?
  32. 32.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 9
  2. the one nearest an end
  3. 78000
  4. 2
  5. 5 %
  6. 3
  7. grey-green-red
  8. 1
  9. 7800
  10. green-black-black
  11. 690
  12. 20000
  13. 82000
  14. orange-black-brown
  15. 7100
  16. 670
  17. 92000
  18. 8
  19. red-black-black
  20. 1
  21. 30
  22. 7
  23. 8.5
  24. violet-orange-orange
  25. 0
  26. 1.6
  27. violet-grey-brown
  28. 14
  29. green-orange-black
  30. 6.1
  31. 6
  32. 610
  33. 600
  34. 210
  35. 560
  36. 930
  37. 1.5
  38. 500
  39. 32
  40. 46

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