← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 645 · 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.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-orange (b) white-black-orange (c) white-white-yellow (d) white-white-red
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  4. 4.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does orange stand for?
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-red (b) violet-yellow-brown (c) violet-yellow-orange (d) yellow-violet-red
  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 900 Ω resistor? (a) white-black-red (b) brown-white-brown (c) white-black-brown (d) white-black-black
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-brown (b) red-grey-black (c) grey-red-black (d) orange-grey-black
  19. 19.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) blue-brown-black (b) brown-green-black (c) green-brown-brown (d) green-brown-black
  24. 24.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-red (b) violet-brown-orange (c) brown-violet-orange (d) violet-brown-yellow
  29. 29.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-red (b) brown-black-orange (c) brown-black-brown (d) red-brown-red
  32. 32.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) red-black-red (c) orange-red-red (d) red-black-brown
  34. 34.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does red stand for?
  39. 39.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) violet-brown-brown (b) brown-violet-red (c) brown-violet-black (d) brown-violet-brown

Answer key

  1. the one nearest an end
  2. white-white-orange
  3. 5 %
  4. 3900
  5. 560
  6. 84000
  7. 3
  8. 1
  9. 250
  10. 870
  11. 0
  12. 23
  13. 80
  14. violet-yellow-red
  15. 8
  16. white-black-brown
  17. 5
  18. red-grey-black
  19. 9000
  20. 200
  21. 1500
  22. 9
  23. green-brown-black
  24. 690
  25. 1000
  26. 300
  27. 340
  28. violet-brown-orange
  29. 780
  30. 1.1
  31. brown-black-red
  32. 9100
  33. red-black-red
  34. 45
  35. 150
  36. 63000
  37. 23000
  38. 2
  39. 14
  40. brown-violet-brown

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