← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 403 · 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 white, grey, red. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-red (b) blue-yellow-orange (c) blue-yellow-yellow (d) yellow-blue-orange
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-brown (b) red-grey-orange (c) red-grey-red (d) grey-red-red
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) grey-violet-black (b) grey-violet-red (c) violet-grey-brown (d) grey-violet-brown
  16. 16.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-red (b) yellow-brown-brown (c) brown-yellow-brown (d) yellow-brown-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-orange (b) red-orange-orange (c) red-red-red (d) red-red-yellow
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) orange-brown-red (b) brown-orange-red (c) orange-brown-orange (d) orange-brown-brown
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 In the resistor colour code, which number does yellow stand for?
  22. 22.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) blue-red-black (b) green-red-brown (c) red-green-black (d) green-red-black
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-red (b) yellow-orange-orange (c) orange-yellow-yellow (d) orange-yellow-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 850 Ω resistor? (a) grey-green-black (b) grey-green-red (c) grey-green-brown (d) green-grey-brown
  26. 26.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) red-yellow-black (b) brown-yellow-brown (c) brown-yellow-black (d) yellow-brown-black
  30. 30.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-red (b) blue-white-brown (c) blue-white-black (d) white-blue-brown
  33. 33.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-brown (b) brown-green-orange (c) brown-green-red (d) green-brown-red
  36. 36.🌈 In the resistor colour code, which number does orange stand for?
  37. 37.🌈 In the resistor colour code, which number does blue stand for?
  38. 38.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-brown (b) orange-grey-black (c) grey-orange-brown (d) orange-grey-red

Answer key

  1. 9800
  2. blue-yellow-orange
  3. the one nearest an end
  4. 7
  5. 4500
  6. 8.4
  7. 75
  8. 2.9
  9. 3.1
  10. 29000
  11. 9
  12. 5 %
  13. red-grey-red
  14. 5
  15. grey-violet-brown
  16. 3300
  17. yellow-brown-brown
  18. red-red-orange
  19. orange-brown-red
  20. 1
  21. 4
  22. 77000
  23. green-red-black
  24. orange-yellow-orange
  25. grey-green-brown
  26. 61000
  27. 60
  28. 0
  29. brown-yellow-black
  30. 2600
  31. 24000
  32. blue-white-brown
  33. 310
  34. 35
  35. brown-green-red
  36. 3
  37. 6
  38. 760
  39. 23
  40. orange-grey-brown

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