← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 640 · 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 blue, orange, brown. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  4. 4.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  7. 7.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-brown (b) brown-grey-black (c) brown-grey-red (d) grey-brown-brown
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-red (b) white-orange-red (c) orange-white-brown (d) orange-white-orange
  11. 11.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-brown (b) red-orange-orange (c) red-orange-red (d) orange-red-red
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) grey-blue-black (b) violet-grey-black (c) blue-grey-black (d) blue-grey-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-red (b) green-brown-orange (c) brown-green-yellow (d) brown-green-orange
  22. 22.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-orange (b) white-white-brown (c) white-black-red (d) white-white-red
  29. 29.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-orange (b) red-red-red (c) red-orange-orange (d) red-red-yellow
  34. 34.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does blue stand for?
  38. 38.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does black stand for?

Answer key

  1. 630
  2. 610
  3. 5 %
  4. 9.4
  5. 670
  6. the one nearest an end
  7. 160
  8. 5200
  9. brown-grey-brown
  10. orange-white-red
  11. 36
  12. 1
  13. red-orange-red
  14. 4
  15. 23
  16. 7.5
  17. 5000
  18. 230
  19. 3
  20. blue-grey-black
  21. brown-green-orange
  22. 34000
  23. 41
  24. 48
  25. 7
  26. 440
  27. 8
  28. white-white-red
  29. 4.9
  30. 67
  31. 29000
  32. 8.7
  33. red-red-orange
  34. 72000
  35. 1.2
  36. 72
  37. 6
  38. 50
  39. 3.6
  40. 0

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