← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 755 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7800 Ω resistor? (a) violet-grey-brown (b) violet-grey-red (c) grey-violet-red (d) violet-grey-orange
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  12. 12.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  13. 13.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-red (b) orange-violet-orange (c) orange-violet-yellow (d) violet-orange-orange
  15. 15.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-black (b) red-white-red (c) red-white-brown (d) white-red-brown
  19. 19.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) yellow-red-orange (b) red-yellow-yellow (c) red-yellow-orange (d) red-yellow-red
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-brown (b) white-violet-red (c) violet-white-red (d) white-violet-orange
  26. 26.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) violet-yellow-black (b) grey-yellow-black (c) yellow-violet-black (d) violet-yellow-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-orange (b) yellow-green-orange (c) yellow-yellow-red (d) yellow-yellow-yellow
  29. 29.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does orange stand for?
  39. 39.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?

Answer key

  1. violet-grey-red
  2. 2
  3. 70
  4. 27
  5. 32
  6. 4500
  7. 74
  8. 4.3
  9. 56
  10. 900
  11. 28
  12. the one nearest an end
  13. 9.7
  14. orange-violet-orange
  15. 89
  16. 68
  17. 530
  18. red-white-brown
  19. 5 %
  20. red-yellow-orange
  21. 7
  22. 6000
  23. 5400
  24. 20
  25. white-violet-red
  26. 90
  27. violet-yellow-black
  28. yellow-yellow-orange
  29. 15000
  30. 700
  31. 85
  32. 940
  33. 6
  34. 150
  35. 81
  36. 14000
  37. 31
  38. 3
  39. 820
  40. 830

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