← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 283 · 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 grey, black, brown. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  3. 3.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) blue-brown-red (b) blue-brown-black (c) blue-brown-brown (d) brown-blue-brown
  6. 6.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) red-green-orange (b) green-red-yellow (c) green-red-red (d) green-red-orange
  8. 8.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-yellow (b) brown-green-orange (c) brown-green-red (d) green-brown-orange
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) yellow-white-red (b) white-yellow-brown (c) yellow-white-brown (d) yellow-white-black
  11. 11.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) green-blue-brown (b) blue-blue-black (c) green-blue-black (d) blue-green-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) red-brown-brown (b) brown-black-brown (c) brown-black-black (d) brown-black-red
  14. 14.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-brown (c) violet-orange-red (d) violet-orange-orange
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-orange (b) violet-grey-red (c) violet-violet-red (d) violet-violet-brown
  19. 19.🌈 In the resistor colour code, which number does white stand for?
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 In the resistor colour code, which number does black stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) white-red-black (c) red-white-black (d) orange-white-black
  23. 23.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-orange-black (b) red-red-black (c) orange-red-black (d) red-red-brown
  32. 32.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-red (b) brown-white-black (c) white-brown-brown (d) brown-white-brown
  34. 34.🌈 In the resistor colour code, which number does blue stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-orange (b) brown-violet-yellow (c) violet-brown-orange (d) brown-violet-red
  36. 36.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-brown (b) yellow-brown-black (c) orange-brown-black (d) brown-orange-black
  39. 39.🌈 In the resistor colour code, which number does grey stand for?
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. 800
  2. the one nearest an end
  3. 89
  4. 870
  5. blue-brown-brown
  6. 8.3
  7. green-red-orange
  8. 560
  9. brown-green-orange
  10. yellow-white-brown
  11. 3500
  12. green-blue-black
  13. brown-black-brown
  14. 5800
  15. 7
  16. violet-orange-red
  17. 5 %
  18. violet-violet-red
  19. 9
  20. 1
  21. 0
  22. red-white-black
  23. 3.7
  24. 39000
  25. 50
  26. 8.1
  27. 580
  28. 1.4
  29. 7.5
  30. 140
  31. red-red-black
  32. 880
  33. brown-white-brown
  34. 6
  35. brown-violet-orange
  36. 32
  37. 880
  38. orange-brown-black
  39. 8
  40. 5

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