← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 393 · 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 widest gap (c) the gold band (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-red (b) green-red-brown (c) red-green-brown (d) red-green-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-red (b) grey-black-brown (c) grey-black-black (d) white-grey-brown
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  9. 9.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-brown (c) brown-orange-black (d) orange-brown-black
  13. 13.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) white-violet-brown (b) white-violet-black (c) brown-violet-black (d) violet-white-black
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does black stand for?
  21. 21.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) green-violet-brown (b) green-violet-black (c) blue-violet-black (d) violet-green-black
  23. 23.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-orange (b) green-orange-yellow (c) green-orange-red (d) orange-green-orange
  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 red, white, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 In the resistor colour code, which number does grey stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) violet-red-brown (b) violet-red-black (c) grey-red-black (d) red-violet-black
  31. 31.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-orange (b) blue-red-red (c) blue-red-yellow (d) red-blue-orange
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-red (c) orange-yellow-brown (d) orange-yellow-red
  35. 35.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-orange (c) violet-red-yellow (d) violet-red-red
  39. 39.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) yellow-violet-yellow (b) yellow-violet-orange (c) yellow-violet-red (d) violet-yellow-orange

Answer key

  1. the one nearest an end
  2. 4.2
  3. 2
  4. 340
  5. 5
  6. red-green-brown
  7. grey-black-brown
  8. 5 %
  9. 11
  10. 1400
  11. 9
  12. brown-orange-black
  13. 7.7
  14. 7.8
  15. 370
  16. white-violet-black
  17. 7
  18. 92000
  19. 750
  20. 0
  21. 550
  22. green-violet-black
  23. 4700
  24. 16
  25. green-orange-orange
  26. 4000
  27. 2900
  28. 4
  29. 8
  30. violet-red-black
  31. 63
  32. 250
  33. blue-red-orange
  34. orange-yellow-red
  35. 93
  36. 3.2
  37. 1
  38. violet-red-orange
  39. 69
  40. yellow-violet-orange

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