← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 47 · 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 red, violet, brown. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  4. 4.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-brown (b) red-white-black (c) white-brown-black (d) brown-white-black
  10. 10.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) green-yellow-red (b) yellow-black-orange (c) yellow-black-red (d) yellow-black-brown
  12. 12.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8700 Ω resistor? (a) grey-violet-orange (b) violet-grey-red (c) grey-violet-brown (d) grey-violet-red
  14. 14.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-red (b) red-yellow-orange (c) red-yellow-yellow (d) yellow-red-orange
  16. 16.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-orange-black (b) red-red-brown (c) red-red-black (d) orange-red-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-black (b) green-blue-black (c) yellow-blue-brown (d) blue-yellow-black
  24. 24.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) green-blue-brown (b) blue-green-red (c) green-blue-orange (d) green-blue-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-red (b) brown-orange-black (c) orange-brown-brown (d) brown-orange-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 280 Ω resistor? (a) grey-red-brown (b) red-grey-brown (c) red-grey-black (d) red-grey-red
  28. 28.🌈 In the resistor colour code, which number does violet stand for?
  29. 29.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) grey-black-black (b) violet-black-brown (c) grey-violet-black (d) violet-black-black
  31. 31.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) violet-grey-brown (b) grey-violet-red (c) grey-violet-black (d) grey-violet-brown
  33. 33.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-brown (b) red-yellow-red (c) red-yellow-orange (d) yellow-red-red
  35. 35.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8400 Ω resistor? (a) grey-yellow-brown (b) yellow-grey-red (c) grey-yellow-orange (d) grey-yellow-red
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-brown (c) grey-black-orange (d) grey-black-red
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) white-orange-orange (c) orange-white-orange (d) white-orange-yellow

Answer key

  1. 270
  2. 17000
  3. 5 %
  4. 2.9
  5. 49
  6. the one nearest an end
  7. 9
  8. 0
  9. brown-white-black
  10. 14000
  11. yellow-black-red
  12. 54
  13. grey-violet-red
  14. 210
  15. red-yellow-orange
  16. 520
  17. 680
  18. 5
  19. 3.7
  20. 1.5
  21. 2.4
  22. red-red-black
  23. yellow-blue-black
  24. 6.2
  25. green-blue-red
  26. brown-orange-brown
  27. red-grey-brown
  28. 7
  29. 2
  30. violet-black-black
  31. 65
  32. grey-violet-brown
  33. 310
  34. red-yellow-red
  35. 9600
  36. 1
  37. 160
  38. grey-yellow-red
  39. grey-black-red
  40. white-orange-orange

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