← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 494 · 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) 5 % (b) 0 % (c) 50 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  4. 4.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  5. 5.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) blue-grey-black (b) white-blue-black (c) grey-blue-black (d) grey-blue-brown
  8. 8.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-black-red (b) white-white-brown (c) white-white-red (d) white-white-orange
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  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 23000 Ω resistor? (a) red-orange-orange (b) red-orange-red (c) orange-red-orange (d) red-orange-yellow
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-yellow-black (b) yellow-green-black (c) yellow-green-brown (d) green-green-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-brown (b) white-violet-red (c) violet-white-red (d) white-violet-orange
  19. 19.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) blue-violet-brown (b) violet-blue-brown (c) blue-violet-red (d) blue-violet-black
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-red (b) red-violet-orange (c) violet-red-yellow (d) violet-red-orange
  22. 22.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-blue-black (b) violet-black-black (c) blue-black-brown (d) blue-black-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-brown (b) violet-blue-red (c) blue-violet-orange (d) blue-violet-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) brown-brown-brown (c) brown-brown-black (d) red-brown-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-brown (b) white-orange-brown (c) orange-white-black (d) orange-white-red
  28. 28.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  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 orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-red-black (b) red-orange-brown (c) orange-orange-black (d) red-orange-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) white-green-red (b) white-green-black (c) green-white-brown (d) white-green-brown
  38. 38.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-red (b) violet-yellow-brown (c) yellow-violet-black (d) yellow-violet-brown

Answer key

  1. 5 %
  2. 52
  3. 58
  4. the one nearest an end
  5. 4.1
  6. 5000
  7. grey-blue-black
  8. 53
  9. white-white-red
  10. 8
  11. 3
  12. red-orange-orange
  13. 0
  14. 160
  15. 62
  16. 4
  17. yellow-green-black
  18. white-violet-red
  19. 12
  20. blue-violet-brown
  21. violet-red-orange
  22. 300
  23. 2
  24. blue-black-black
  25. blue-violet-red
  26. brown-brown-black
  27. orange-white-brown
  28. 1.7
  29. 7
  30. 77000
  31. 3.1
  32. 73
  33. 5
  34. 4
  35. 37000
  36. red-orange-black
  37. white-green-brown
  38. 1200
  39. 140
  40. yellow-violet-brown

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