← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 709 · 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 brown stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  3. 3.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  6. 6.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-yellow (b) yellow-blue-red (c) yellow-blue-orange (d) blue-yellow-orange
  8. 8.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does red stand for?
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) orange-brown-orange (b) brown-orange-red (c) brown-orange-yellow (d) brown-orange-orange
  17. 17.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) grey-brown-black (b) violet-brown-black (c) brown-violet-black (d) violet-brown-brown
  24. 24.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-brown (b) violet-red-black (c) blue-red-black (d) red-blue-black
  26. 26.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-black (b) red-orange-black (c) orange-red-black (d) red-red-brown
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) violet-orange-red (b) violet-orange-black (c) violet-orange-brown (d) orange-violet-brown
  30. 30.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) brown-red-red (b) red-brown-brown (c) red-brown-orange (d) red-brown-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-brown (c) blue-yellow-black (d) blue-yellow-red
  37. 37.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-orange (b) violet-grey-orange (c) grey-violet-red (d) grey-violet-yellow
  39. 39.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?

Answer key

  1. 1
  2. the one nearest an end
  3. 95
  4. 3.9
  5. 5 %
  6. 7.1
  7. yellow-blue-orange
  8. 7.4
  9. 4200
  10. 7
  11. 530
  12. 82
  13. 3.2
  14. 2
  15. 8
  16. brown-orange-orange
  17. 43
  18. 170
  19. 61000
  20. 4.7
  21. 6
  22. 87
  23. violet-brown-black
  24. 67
  25. blue-red-black
  26. 650
  27. 32
  28. red-red-black
  29. violet-orange-brown
  30. 200
  31. 4.6
  32. 120
  33. 2200
  34. 890
  35. red-brown-red
  36. blue-yellow-brown
  37. 5.9
  38. grey-violet-orange
  39. 26
  40. 46

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