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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 694 · 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) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-orange (b) orange-yellow-brown (c) orange-yellow-red (d) yellow-orange-red
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) grey-brown-brown (b) grey-brown-red (c) brown-grey-brown (d) grey-brown-black
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  6. 6.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-red (b) orange-violet-black (c) violet-orange-brown (d) orange-violet-brown
  12. 12.🌈 In the resistor colour code, which number does green stand for?
  13. 13.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) orange-orange-black (c) yellow-orange-black (d) orange-orange-brown
  16. 16.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does white stand for?
  18. 18.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 620 Ω resistor? (a) blue-red-black (b) blue-red-brown (c) red-blue-brown (d) blue-red-red
  22. 22.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-red (b) violet-red-yellow (c) violet-red-orange (d) red-violet-orange
  26. 26.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-black (b) orange-violet-brown (c) yellow-violet-black (d) violet-orange-black
  31. 31.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-brown (b) brown-grey-black (c) grey-white-black (d) white-grey-black
  33. 33.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-brown (b) blue-orange-brown (c) orange-blue-red (d) orange-blue-black
  36. 36.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does yellow stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) green-blue-red (b) green-blue-brown (c) blue-green-red (d) green-blue-orange
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) red-grey-brown (b) grey-red-red (c) grey-red-black (d) grey-red-brown

Answer key

  1. the one nearest an end
  2. 2
  3. orange-yellow-red
  4. grey-brown-brown
  5. 5 %
  6. 68
  7. 540
  8. 2.1
  9. 240
  10. 70
  11. orange-violet-brown
  12. 5
  13. 290
  14. 870
  15. orange-orange-black
  16. 3800
  17. 9
  18. 97
  19. 0
  20. 23
  21. blue-red-brown
  22. 77000
  23. 3
  24. 1
  25. violet-red-orange
  26. 9.4
  27. 28
  28. 59
  29. 60000
  30. orange-violet-black
  31. 71000
  32. white-grey-black
  33. 380
  34. 280
  35. orange-blue-brown
  36. 900
  37. 34000
  38. 4
  39. green-blue-red
  40. grey-red-brown

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