← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 136 · 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 grey, red, brown. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-black (c) green-grey-black (d) yellow-grey-black
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-brown (b) grey-black-black (c) grey-black-red (d) white-grey-brown
  14. 14.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-yellow (b) violet-orange-orange (c) orange-violet-red (d) orange-violet-orange
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) violet-grey-brown (b) grey-violet-brown (c) grey-violet-red (d) grey-violet-black
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-orange (b) yellow-brown-red (c) brown-yellow-orange (d) yellow-brown-yellow
  25. 25.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-brown (b) blue-violet-black (c) violet-blue-black (d) violet-violet-black
  31. 31.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does red stand for?
  34. 34.🌈 In the resistor colour code, which number does black stand for?
  35. 35.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-yellow (b) green-red-orange (c) red-green-orange (d) green-red-red
  39. 39.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 820
  2. the one nearest an end
  3. 3
  4. 830
  5. 9
  6. 56
  7. 5 %
  8. yellow-grey-black
  9. 1
  10. 830
  11. 630
  12. 760
  13. grey-black-brown
  14. 1.8
  15. 15
  16. 40
  17. orange-violet-orange
  18. 8
  19. 22
  20. 93000
  21. 81
  22. 190
  23. grey-violet-brown
  24. yellow-brown-orange
  25. 550
  26. 490
  27. 17000
  28. 660
  29. 79000
  30. blue-violet-black
  31. 12
  32. 36
  33. 2
  34. 0
  35. 6.2
  36. 76
  37. 450
  38. green-red-orange
  39. 22
  40. 410

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