← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 222 · 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 yellow stand for?
  2. 2.🌈 A resistor has the colour bands green, blue, 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) 5 % (c) 50 % (d) 0 %
  4. 4.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  5. 5.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) violet-red-black (b) violet-red-brown (c) red-violet-black (d) grey-red-black
  12. 12.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-brown (b) red-grey-brown (c) grey-red-red (d) grey-red-black
  14. 14.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) white-blue-black (c) white-blue-brown (d) brown-blue-black
  20. 20.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 280 Ω resistor? (a) grey-red-brown (b) red-grey-brown (c) red-grey-black (d) red-grey-red
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-brown (b) yellow-black-black (c) green-yellow-black (d) green-black-black
  25. 25.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does brown stand for?
  28. 28.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) green-yellow-black (c) yellow-green-brown (d) green-green-black
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) grey-brown-black (b) brown-grey-brown (c) grey-brown-brown (d) grey-brown-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) orange-white-black (c) red-white-black (d) white-red-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) grey-yellow-brown (b) grey-yellow-black (c) yellow-grey-black (d) white-yellow-black
  38. 38.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?

Answer key

  1. 4
  2. 560
  3. 5 %
  4. 640
  5. the one nearest an end
  6. 3
  7. 13000
  8. 91
  9. 9
  10. 2
  11. violet-red-black
  12. 810
  13. grey-red-brown
  14. 3.1
  15. 77000
  16. 170
  17. 88000
  18. 50
  19. white-blue-black
  20. 800
  21. 57
  22. 6000
  23. red-grey-brown
  24. yellow-black-black
  25. 720
  26. 6.3
  27. 1
  28. 8.5
  29. 80
  30. 7.1
  31. 1800
  32. yellow-green-black
  33. 0
  34. 48000
  35. grey-brown-brown
  36. red-white-black
  37. grey-yellow-black
  38. 5.8
  39. 79
  40. 80000

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