← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 390 · 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) 25 % (b) 50 % (c) 5 % (d) 0 %
  2. 2.🌈 In the resistor colour code, which number does violet stand for?
  3. 3.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-red (b) orange-black-yellow (c) orange-black-orange (d) yellow-orange-orange
  7. 7.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  10. 10.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  11. 11.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-brown (b) orange-green-red (c) orange-green-orange (d) green-orange-red
  16. 16.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) grey-yellow-red (b) yellow-grey-red (c) yellow-grey-orange (d) yellow-grey-brown
  18. 18.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-brown (b) brown-green-brown (c) green-brown-red (d) green-brown-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) red-white-black (c) orange-white-black (d) white-red-black
  24. 24.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-red (b) green-green-black (c) green-blue-brown (d) green-green-brown
  26. 26.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) green-orange-orange (b) orange-green-orange (c) orange-green-yellow (d) orange-green-red
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) grey-violet-red (b) violet-grey-brown (c) grey-violet-black (d) grey-violet-brown
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 In the resistor colour code, which number does brown stand for?
  32. 32.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-brown (b) violet-blue-black (c) violet-violet-black (d) blue-violet-black
  35. 35.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 7
  3. 33000
  4. 3
  5. 1.7
  6. orange-black-orange
  7. 16
  8. 1.8
  9. 71
  10. the one nearest an end
  11. 27
  12. 2
  13. 0
  14. 1700
  15. orange-green-red
  16. 30000
  17. yellow-grey-red
  18. 37
  19. 6400
  20. 39
  21. 9
  22. green-brown-brown
  23. red-white-black
  24. 390
  25. green-green-brown
  26. 2400
  27. 5600
  28. orange-green-orange
  29. grey-violet-brown
  30. 6
  31. 1
  32. 81
  33. 41
  34. blue-violet-black
  35. 810
  36. 20
  37. 560
  38. 120
  39. 54
  40. 3.2

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