← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 769 · 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 brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  5. 5.🌈 In the resistor colour code, which number does grey stand for?
  6. 6.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-brown (b) grey-orange-red (c) orange-grey-brown (d) grey-orange-black
  8. 8.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) brown-green-brown (b) brown-green-red (c) brown-green-black (d) green-brown-brown
  15. 15.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does orange stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-black (b) violet-grey-brown (c) violet-grey-red (d) grey-violet-brown
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) orange-red-brown (b) red-black-brown (c) red-black-red (d) red-black-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-orange (b) violet-grey-red (c) violet-violet-brown (d) violet-violet-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-brown (b) white-yellow-red (c) white-yellow-orange (d) yellow-white-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-orange (b) violet-yellow-red (c) violet-yellow-yellow (d) yellow-violet-orange
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-grey-orange (b) grey-grey-brown (c) grey-white-red (d) grey-grey-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-orange (b) violet-red-yellow (c) red-violet-orange (d) violet-red-red
  24. 24.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-red (b) violet-blue-red (c) blue-violet-orange (d) blue-violet-brown
  28. 28.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does brown stand for?
  30. 30.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) orange-blue-brown (b) yellow-blue-black (c) orange-blue-black (d) blue-orange-black
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) green-yellow-brown (b) yellow-green-black (c) yellow-green-red (d) yellow-green-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-brown (b) brown-white-brown (c) white-black-black (d) white-black-red
  37. 37.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) white-yellow-brown (b) brown-yellow-black (c) yellow-white-black (d) white-yellow-black

Answer key

  1. 18
  2. 4
  3. 5 %
  4. the one nearest an end
  5. 8
  6. 74
  7. grey-orange-brown
  8. 86000
  9. 770
  10. 5900
  11. 85
  12. 0
  13. 36
  14. brown-green-brown
  15. 47
  16. 3
  17. violet-grey-brown
  18. red-black-brown
  19. violet-violet-red
  20. white-yellow-red
  21. violet-yellow-orange
  22. grey-grey-red
  23. violet-red-orange
  24. 410
  25. 7
  26. 5
  27. blue-violet-red
  28. 340
  29. 1
  30. 880
  31. 980
  32. 55000
  33. 380
  34. orange-blue-black
  35. yellow-green-brown
  36. white-black-brown
  37. 47000
  38. 34
  39. 6.4
  40. white-yellow-black

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids