← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 31 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) grey-red-black (b) red-grey-brown (c) orange-grey-black (d) red-grey-black
  3. 3.🌈 In the resistor colour code, which number does violet stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-red (b) grey-orange-brown (c) orange-grey-red (d) grey-orange-orange
  5. 5.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  7. 7.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) white-orange-red (b) orange-white-brown (c) orange-white-orange (d) orange-white-red
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) orange-green-black (b) blue-orange-black (c) green-orange-brown (d) green-orange-black
  15. 15.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) orange-green-orange (b) green-orange-red (c) green-orange-orange (d) green-orange-yellow
  20. 20.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) violet-orange-brown (b) orange-violet-red (c) orange-violet-brown (d) orange-violet-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) grey-violet-brown (b) violet-grey-brown (c) violet-grey-red (d) violet-grey-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) yellow-black-brown (c) green-black-black (d) yellow-black-black
  30. 30.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-orange (b) green-orange-orange (c) orange-green-red (d) orange-green-yellow
  40. 40.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. red-grey-black
  3. 7
  4. grey-orange-red
  5. 150
  6. 1100
  7. the one nearest an end
  8. 1
  9. 3.3
  10. 1.6
  11. 3
  12. orange-white-red
  13. 5
  14. green-orange-black
  15. 41
  16. 110
  17. 71
  18. 15000
  19. green-orange-orange
  20. 350
  21. 6
  22. 310
  23. 57
  24. 50000
  25. 450
  26. 0
  27. orange-violet-brown
  28. violet-grey-brown
  29. yellow-black-black
  30. 77000
  31. 800
  32. 22000
  33. 80
  34. 4
  35. 2
  36. 1.4
  37. 440
  38. 920
  39. orange-green-orange
  40. 610

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