← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 370 · 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.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-yellow (b) orange-black-orange (c) orange-black-red (d) yellow-orange-orange
  7. 7.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) violet-white-brown (b) white-violet-brown (c) white-violet-red (d) white-violet-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-white-brown (b) grey-grey-red (c) grey-grey-black (d) grey-grey-brown
  13. 13.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-black (b) red-red-red (c) red-red-brown (d) red-orange-brown
  17. 17.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) violet-orange-black (b) orange-violet-black (c) orange-violet-brown (d) yellow-violet-black
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) violet-yellow-black (b) grey-yellow-black (c) yellow-violet-black (d) violet-yellow-brown
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) white-orange-black (b) grey-orange-brown (c) orange-grey-black (d) grey-orange-black
  24. 24.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  26. 26.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  27. 27.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does orange stand for?
  36. 36.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 38000
  3. 2
  4. 5
  5. 98
  6. orange-black-orange
  7. 85
  8. 310
  9. 23
  10. 8.3
  11. white-violet-brown
  12. grey-grey-brown
  13. 21000
  14. 4600
  15. 6
  16. red-red-brown
  17. 70000
  18. 4
  19. 8
  20. 41
  21. orange-violet-black
  22. violet-yellow-black
  23. grey-orange-black
  24. 8.4
  25. 2000
  26. 5 %
  27. 16
  28. 1300
  29. 44000
  30. 480
  31. 160
  32. 8.9
  33. 0
  34. 28
  35. 3
  36. 9.2
  37. 66
  38. 9400
  39. 45
  40. 3600

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