← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 149 · 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) 0 % (b) 25 % (c) 50 % (d) 5 %
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  3. 3.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76 Ω resistor? (a) violet-blue-black (b) blue-violet-black (c) violet-blue-brown (d) grey-blue-black
  6. 6.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) brown-grey-black (b) grey-brown-brown (c) grey-brown-black (d) white-brown-black
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-red (b) white-black-orange (c) white-white-yellow (d) white-white-orange
  12. 12.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-violet-red (b) blue-blue-orange (c) blue-blue-red (d) blue-blue-brown
  15. 15.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) orange-blue-black (b) yellow-blue-black (c) orange-blue-brown (d) blue-orange-black
  22. 22.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) blue-white-red (b) white-blue-orange (c) white-blue-brown (d) white-blue-red
  24. 24.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) grey-orange-black (b) grey-orange-brown (c) white-orange-black (d) orange-grey-black
  33. 33.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-orange (c) grey-black-brown (d) grey-black-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-brown (b) orange-grey-brown (c) grey-orange-red (d) grey-orange-black
  36. 36.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-red (b) green-red-black (c) red-green-brown (d) green-red-brown
  40. 40.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. the one nearest an end
  3. 20
  4. 570
  5. violet-blue-black
  6. 70
  7. 1.2
  8. grey-brown-black
  9. 4
  10. 6900
  11. white-white-orange
  12. 280
  13. 230
  14. blue-blue-red
  15. 900
  16. 9
  17. 5000
  18. 9
  19. 740
  20. 810
  21. orange-blue-black
  22. 740
  23. white-blue-red
  24. 81
  25. 26
  26. 4000
  27. 580
  28. 2
  29. 7
  30. 72
  31. 6.5
  32. grey-orange-black
  33. 5.3
  34. grey-black-red
  35. grey-orange-brown
  36. 690
  37. 5.8
  38. 3700
  39. green-red-brown
  40. 18

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