← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 987 · 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 orange stand for?
  2. 2.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) red-brown-orange (b) brown-red-red (c) brown-red-orange (d) brown-red-yellow
  5. 5.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 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
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) grey-brown-brown (b) grey-brown-black (c) white-brown-black (d) brown-grey-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-orange (b) brown-green-yellow (c) green-brown-orange (d) brown-green-red
  9. 9.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) white-green-yellow (b) green-white-orange (c) white-green-red (d) white-green-orange
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  13. 13.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-orange (b) grey-white-orange (c) grey-grey-red (d) grey-grey-yellow
  15. 15.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-black (b) red-yellow-black (c) brown-yellow-brown (d) yellow-brown-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-orange (b) white-blue-brown (c) blue-white-red (d) white-blue-red
  20. 20.🌈 In the resistor colour code, which number does black stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-red-brown (b) brown-brown-black (c) brown-brown-red (d) brown-brown-brown
  22. 22.🌈 In the resistor colour code, which number does green stand for?
  23. 23.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does red stand for?
  26. 26.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) brown-violet-orange (b) violet-brown-yellow (c) violet-brown-red (d) violet-brown-orange
  36. 36.🌈 In the resistor colour code, which number does yellow stand for?
  37. 37.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-brown (b) white-brown-black (c) brown-white-black (d) brown-brown-black
  40. 40.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 3
  2. 70
  3. 75
  4. brown-red-orange
  5. 200
  6. the one nearest an end
  7. grey-brown-black
  8. brown-green-orange
  9. 880
  10. white-green-orange
  11. 1
  12. 5 %
  13. 440
  14. grey-grey-orange
  15. 380
  16. 8.3
  17. 36000
  18. brown-yellow-black
  19. white-blue-red
  20. 0
  21. brown-brown-brown
  22. 5
  23. 7300
  24. 350
  25. 2
  26. 55
  27. 800
  28. 39
  29. 270
  30. 500
  31. 1
  32. 82
  33. 6
  34. 3.3
  35. violet-brown-orange
  36. 4
  37. 890
  38. 9.8
  39. white-brown-black
  40. 9

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