← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 503 · 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 violet stand for?
  2. 2.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 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
  5. 5.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-brown (b) red-red-red (c) red-orange-brown (d) red-red-black
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-brown (b) red-white-black (c) brown-white-black (d) white-brown-black
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  12. 12.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does grey stand for?
  17. 17.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-yellow (b) white-grey-orange (c) grey-white-red (d) grey-white-orange
  19. 19.🌈 A resistor has the colour bands white, red, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-brown (b) red-brown-orange (c) red-brown-red (d) brown-red-red
  27. 27.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) grey-red-orange (b) red-grey-red (c) red-grey-orange (d) red-grey-yellow
  30. 30.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-brown (b) blue-green-brown (c) green-blue-black (d) green-blue-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-yellow (b) white-orange-orange (c) orange-white-orange (d) white-orange-red
  37. 37.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-yellow (b) blue-violet-red (c) violet-blue-orange (d) blue-violet-orange

Answer key

  1. 7
  2. 94
  3. 1
  4. the one nearest an end
  5. 1900
  6. 6.4
  7. 94000
  8. 2
  9. red-red-brown
  10. brown-white-black
  11. 5 %
  12. 20
  13. 0
  14. 9300
  15. 2.9
  16. 8
  17. 300
  18. grey-white-orange
  19. 9200
  20. 15000
  21. 4
  22. 1.2
  23. 700
  24. 7200
  25. 7.4
  26. red-brown-red
  27. 2000
  28. 80
  29. red-grey-orange
  30. 66
  31. 10000
  32. 3.2
  33. 880
  34. 98
  35. green-blue-brown
  36. white-orange-orange
  37. 43
  38. 6
  39. 87
  40. blue-violet-orange

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