← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 90 · 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 17 Ω resistor? (a) brown-violet-brown (b) brown-violet-black (c) red-violet-black (d) violet-brown-black
  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) 25 % (b) 0 % (c) 5 % (d) 50 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) orange-yellow-red (b) yellow-orange-brown (c) yellow-orange-red (d) yellow-orange-orange
  5. 5.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 850 Ω resistor? (a) grey-green-red (b) grey-green-black (c) green-grey-brown (d) grey-green-brown
  9. 9.🌈 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
  10. 10.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does grey stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-orange (b) green-grey-red (c) grey-green-red (d) green-grey-brown
  13. 13.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does red stand for?
  15. 15.🌈 A resistor has the colour bands orange, orange, orange. 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 40 Ω resistor? (a) green-black-black (b) green-yellow-black (c) yellow-black-black (d) yellow-black-brown
  18. 18.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 In the resistor colour code, which number does violet stand for?
  24. 24.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-red (b) violet-blue-brown (c) blue-violet-brown (d) violet-blue-black
  38. 38.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?

Answer key

  1. brown-violet-black
  2. 610
  3. 5 %
  4. yellow-orange-red
  5. 3.6
  6. 220
  7. 6
  8. grey-green-brown
  9. the one nearest an end
  10. 550
  11. 8
  12. green-grey-red
  13. 940
  14. 2
  15. 33000
  16. 3
  17. yellow-black-black
  18. 6.6
  19. 8500
  20. 15
  21. 6.1
  22. 9
  23. 7
  24. 92000
  25. 76
  26. 520
  27. 50
  28. 9300
  29. 8.8
  30. 270
  31. 600
  32. 920
  33. 15000
  34. 56
  35. 2.7
  36. 74
  37. violet-blue-brown
  38. 23
  39. 2.2
  40. 460

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