← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 375 · 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 one nearest an end (b) the gold band (c) the widest gap (d) any band
  2. 2.🌈 In the resistor colour code, which number does blue stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-brown (b) blue-violet-brown (c) violet-blue-red (d) violet-blue-black
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) blue-blue-black (b) green-blue-brown (c) blue-green-black (d) green-blue-black
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  6. 6.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-yellow (b) orange-brown-orange (c) brown-orange-orange (d) orange-brown-red
  11. 11.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-white-orange (b) grey-grey-orange (c) grey-grey-yellow (d) grey-grey-red
  14. 14.🌈 In the resistor colour code, which number does red stand for?
  15. 15.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) orange-white-yellow (b) orange-white-orange (c) orange-white-red (d) white-orange-orange
  19. 19.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-red (b) green-red-brown (c) green-red-black (d) red-green-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) yellow-orange-red (b) yellow-orange-orange (c) orange-yellow-red (d) yellow-orange-brown
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) brown-yellow-red (b) yellow-brown-orange (c) brown-yellow-yellow (d) brown-yellow-orange
  24. 24.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) red-blue-black (b) red-blue-brown (c) blue-red-black (d) orange-blue-black
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-blue-brown (b) blue-violet-red (c) blue-blue-orange (d) blue-blue-red
  34. 34.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) yellow-grey-orange (b) grey-yellow-yellow (c) grey-yellow-orange (d) grey-yellow-red
  37. 37.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-orange (b) brown-white-orange (c) white-brown-yellow (d) white-brown-red
  39. 39.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 6
  3. violet-blue-brown
  4. green-blue-black
  5. 5 %
  6. 8.5
  7. 1
  8. 6700
  9. 7
  10. orange-brown-orange
  11. 660
  12. 8
  13. grey-grey-orange
  14. 2
  15. 1.9
  16. 470
  17. 130
  18. orange-white-orange
  19. 970
  20. 22
  21. green-red-brown
  22. yellow-orange-red
  23. brown-yellow-orange
  24. 4
  25. 4600
  26. 940
  27. 2
  28. 89
  29. 600
  30. 33000
  31. 2.5
  32. red-blue-black
  33. blue-blue-red
  34. 86000
  35. 5400
  36. grey-yellow-orange
  37. 220
  38. white-brown-orange
  39. 900
  40. 9

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