← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 97 · 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 resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does violet stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-yellow (b) orange-yellow-red (c) orange-yellow-orange (d) yellow-orange-orange
  14. 14.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) green-green-black (c) yellow-green-brown (d) green-yellow-black
  18. 18.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) green-brown-orange (b) brown-green-orange (c) brown-green-red (d) brown-green-yellow
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-red (b) green-grey-black (c) green-grey-brown (d) grey-green-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-orange-brown (b) yellow-orange-black (c) orange-orange-black (d) orange-yellow-black
  25. 25.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands yellow, white, brown. What is its value (in ohms)?
  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 red, yellow, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-red (b) white-brown-orange (c) brown-white-orange (d) brown-white-yellow
  35. 35.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-orange (b) yellow-violet-red (c) violet-yellow-red (d) violet-yellow-brown
  38. 38.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, red, red. What is its value (in ohms)?

Answer key

  1. 53000
  2. 220
  3. 5 %
  4. 9
  5. 900
  6. 8
  7. 100
  8. the one nearest an end
  9. 0
  10. 22
  11. 52000
  12. 7
  13. orange-yellow-orange
  14. 1.8
  15. 3100
  16. 320
  17. yellow-green-black
  18. 4100
  19. 1
  20. brown-green-orange
  21. 5
  22. 660
  23. green-grey-brown
  24. orange-orange-black
  25. 6300
  26. 5.2
  27. 90
  28. 4
  29. 490
  30. 72
  31. 240
  32. 10
  33. 6.2
  34. brown-white-orange
  35. 1200
  36. 5.8
  37. violet-yellow-red
  38. 930
  39. 14000
  40. 9200

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