← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 152 · 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 white, violet, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) green-grey-black (b) yellow-grey-brown (c) grey-yellow-black (d) yellow-grey-black
  4. 4.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-brown (b) orange-red-black (c) orange-black-black (d) red-black-black
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-black-black (b) orange-black-black (c) orange-black-brown (d) yellow-orange-black
  15. 15.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-red (b) orange-green-yellow (c) green-orange-orange (d) orange-green-orange
  18. 18.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) red-brown-yellow (d) red-brown-orange
  23. 23.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does black stand for?
  25. 25.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) red-black-red (c) orange-red-red (d) red-black-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-orange (b) violet-white-red (c) white-violet-orange (d) violet-white-yellow
  28. 28.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) blue-yellow-black (b) yellow-green-black (c) green-yellow-black (d) green-yellow-brown
  33. 33.🌈 A resistor has the colour bands grey, yellow, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does yellow stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-grey-brown (b) grey-grey-black (c) grey-grey-red (d) grey-white-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-brown (b) white-blue-red (c) blue-white-red (d) blue-white-orange
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) grey-brown-brown (b) brown-grey-brown (c) brown-grey-red (d) brown-grey-black
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) red-black-red (c) red-black-brown (d) orange-red-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-black (b) orange-green-brown (c) orange-green-red (d) green-orange-brown

Answer key

  1. 97000
  2. 510
  3. yellow-grey-black
  4. 780
  5. the one nearest an end
  6. 8
  7. 86
  8. 810
  9. 2
  10. 3400
  11. 6
  12. 5 %
  13. red-black-black
  14. orange-black-black
  15. 97
  16. 8.2
  17. orange-green-orange
  18. 520
  19. 1
  20. 620
  21. 310
  22. red-brown-orange
  23. 71
  24. 0
  25. 110
  26. red-black-red
  27. violet-white-orange
  28. 99
  29. 4500
  30. 440
  31. 39000
  32. green-yellow-black
  33. 8400
  34. 670
  35. 4
  36. grey-grey-brown
  37. blue-white-red
  38. brown-grey-brown
  39. red-black-brown
  40. orange-green-brown

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