← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 299 · 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 white stand for?
  2. 2.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 In the resistor colour code, which number does red stand for?
  5. 5.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) yellow-black-brown (c) green-black-black (d) yellow-black-black
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  11. 11.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  14. 14.🌈 In the resistor colour code, which number does blue stand for?
  15. 15.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) brown-red-brown (d) brown-red-red
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-brown (b) grey-green-red (c) green-grey-red (d) green-grey-orange
  18. 18.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does grey stand for?
  24. 24.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) red-grey-red (b) grey-red-red (c) grey-red-brown (d) grey-red-orange
  30. 30.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-brown (b) grey-violet-brown (c) violet-black-black (d) violet-black-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-black-black (b) red-black-brown (c) orange-red-black (d) red-black-black
  33. 33.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) orange-blue-brown (c) orange-blue-red (d) blue-orange-red
  36. 36.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-red (b) white-blue-orange (c) white-blue-brown (d) blue-white-red
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. 9
  2. 4.1
  3. 3
  4. 2
  5. 42
  6. yellow-black-black
  7. 1
  8. 2300
  9. 6400
  10. 5 %
  11. 87
  12. 4
  13. the one nearest an end
  14. 6
  15. 6500
  16. brown-red-red
  17. green-grey-red
  18. 9.3
  19. 6.2
  20. 4
  21. 1.8
  22. 9300
  23. 8
  24. 9.6
  25. 970
  26. 99
  27. 4.7
  28. 0
  29. grey-red-red
  30. 13
  31. violet-black-brown
  32. red-black-black
  33. 79
  34. 19
  35. orange-blue-red
  36. 10
  37. 64
  38. 82
  39. white-blue-red
  40. 5

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