← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 607 · 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 colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) grey-black-red (b) grey-black-orange (c) grey-black-yellow (d) white-grey-orange
  2. 2.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-red (b) red-brown-orange (c) brown-red-orange (d) red-brown-yellow
  6. 6.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-brown (b) green-black-orange (c) blue-green-red (d) green-black-red
  8. 8.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7800 Ω resistor? (a) violet-grey-red (b) violet-grey-brown (c) grey-violet-red (d) violet-grey-orange
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) yellow-white-yellow (b) white-yellow-orange (c) yellow-white-orange (d) yellow-white-red
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-red (b) white-grey-orange (c) grey-white-yellow (d) grey-white-orange
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) green-red-black (b) red-yellow-black (c) yellow-red-black (d) yellow-red-brown
  13. 13.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  18. 18.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) white-orange-red (b) orange-white-brown (c) white-orange-black (d) white-orange-brown
  21. 21.🌈 In the resistor colour code, which number does grey stand for?
  22. 22.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does blue stand for?
  25. 25.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  26. 26.🌈 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
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-orange (b) white-blue-red (c) white-blue-brown (d) blue-white-red
  28. 28.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-orange (b) brown-red-brown (c) brown-red-red (d) red-brown-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) brown-violet-black (b) violet-brown-brown (c) violet-brown-black (d) grey-brown-black
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-black (b) orange-red-black (c) red-red-brown (d) red-orange-black
  37. 37.🌈 In the resistor colour code, which number does brown stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-black (b) yellow-orange-brown (c) orange-yellow-brown (d) orange-yellow-red
  39. 39.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. grey-black-orange
  2. 670
  3. 85
  4. 1.4
  5. red-brown-orange
  6. 780
  7. green-black-red
  8. 760
  9. violet-grey-red
  10. yellow-white-orange
  11. grey-white-orange
  12. yellow-red-black
  13. 1900
  14. 1.1
  15. 93
  16. 960
  17. 5 %
  18. 380
  19. 2
  20. white-orange-brown
  21. 8
  22. 53
  23. 42000
  24. 6
  25. 18000
  26. the one nearest an end
  27. white-blue-red
  28. 98
  29. 7
  30. 890
  31. brown-red-red
  32. violet-brown-black
  33. 9
  34. 75
  35. 33
  36. red-red-black
  37. 1
  38. orange-yellow-brown
  39. 310
  40. 26

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