← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 325 · 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 violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) brown-white-red (b) brown-white-orange (c) brown-white-brown (d) white-brown-red
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-green-orange (d) green-blue-red
  7. 7.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  8. 8.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-yellow (b) yellow-orange-orange (c) orange-yellow-red (d) orange-yellow-orange
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-yellow (b) orange-brown-orange (c) brown-orange-red (d) brown-orange-orange
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-black (b) brown-orange-brown (c) orange-brown-brown (d) brown-orange-red
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-black (b) blue-yellow-brown (c) blue-yellow-red (d) yellow-blue-brown
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) orange-grey-black (b) red-grey-brown (c) grey-red-black (d) red-grey-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) yellow-black-red (b) yellow-black-black (c) yellow-black-brown (d) green-yellow-brown
  19. 19.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-red (b) white-white-brown (c) white-white-orange (d) white-black-red
  21. 21.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-brown (b) violet-black-orange (c) violet-black-red (d) grey-violet-red
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-yellow (b) green-blue-orange (c) green-green-red (d) green-green-orange
  25. 25.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) green-yellow-orange (c) yellow-black-red (d) yellow-black-orange
  33. 33.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does orange stand for?
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 In the resistor colour code, which number does brown stand for?
  39. 39.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-red (b) green-orange-orange (c) orange-green-yellow (d) orange-green-orange

Answer key

  1. 77
  2. 5
  3. 720
  4. brown-white-red
  5. 9
  6. green-green-red
  7. the one nearest an end
  8. 17
  9. orange-yellow-orange
  10. 7
  11. 43
  12. brown-orange-orange
  13. 5 %
  14. brown-orange-brown
  15. 2
  16. blue-yellow-brown
  17. red-grey-black
  18. yellow-black-brown
  19. 4.1
  20. white-white-red
  21. 6.6
  22. 1.1
  23. violet-black-red
  24. green-green-orange
  25. 39
  26. 130
  27. 99
  28. 250
  29. 60
  30. 36000
  31. 0
  32. yellow-black-orange
  33. 20
  34. 26
  35. 27000
  36. 3
  37. 8
  38. 1
  39. 8.2
  40. orange-green-orange

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