← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 838 · 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) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77000 Ω resistor? (a) violet-violet-red (b) violet-grey-orange (c) violet-violet-yellow (d) violet-violet-orange
  3. 3.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-red (b) grey-violet-orange (c) violet-black-yellow (d) violet-black-orange
  6. 6.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  12. 12.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-brown-black (b) red-red-black (c) brown-red-black (d) brown-red-brown
  21. 21.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-red (b) red-grey-brown (c) grey-red-black (d) grey-red-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) grey-green-orange (c) green-grey-red (d) green-grey-orange
  40. 40.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. violet-violet-orange
  3. 9.1
  4. 52000
  5. violet-black-orange
  6. 63
  7. 790
  8. 58000
  9. 640
  10. 1.7
  11. 5 %
  12. 91
  13. 64
  14. 4.7
  15. 910
  16. 730
  17. 96
  18. 7500
  19. 390
  20. brown-red-black
  21. 15
  22. 210
  23. 6
  24. 62
  25. 92000
  26. 6.8
  27. 940
  28. 50
  29. 3600
  30. 17000
  31. 9.4
  32. 90
  33. 32000
  34. 2
  35. 2200
  36. 31
  37. 12000
  38. grey-red-brown
  39. green-grey-orange
  40. 30000

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