Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 592 · 40 questions

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.

1. 1.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-black (b) brown-white-red (c) brown-white-brown (d) white-brown-brown
2. 2.🌈 In the resistor colour code, which number does orange stand for?
3. 3.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-brown (c) violet-yellow-red (d) violet-yellow-black
5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-black (b) brown-yellow-black (c) green-brown-black (d) yellow-brown-brown
6. 6.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
7. 7.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
8. 8.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
9. 9.🌈 In the resistor colour code, which number does black stand for?
10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) white-orange-orange (b) orange-white-orange (c) orange-white-yellow (d) orange-white-red
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76 Ω resistor? (a) blue-violet-black (b) violet-blue-black (c) violet-blue-brown (d) grey-blue-black
12. 12.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
14. 14.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) violet-blue-black (b) blue-blue-brown (c) blue-violet-black (d) blue-blue-black
16. 16.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
17. 17.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) violet-blue-red (b) blue-violet-red (c) blue-violet-brown (d) blue-violet-orange
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-yellow (b) blue-orange-orange (c) blue-orange-red (d) orange-blue-orange
20. 20.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) brown-red-black (b) red-white-black (c) white-red-brown (d) white-red-black
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-grey-black (b) violet-violet-black (c) violet-violet-brown (d) grey-violet-black
24. 24.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
25. 25.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
26. 26.🌈 In the resistor colour code, which number does red stand for?
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-orange (b) brown-green-orange (c) green-brown-red (d) green-brown-yellow
28. 28.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
29. 29.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
30. 30.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
31. 31.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-orange (b) red-brown-red (c) brown-red-red (d) brown-red-brown
33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-black (b) grey-brown-brown (c) brown-grey-red (d) brown-grey-brown
34. 34.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-brown (b) red-yellow-black (c) brown-yellow-black (d) yellow-brown-black
36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-red (c) yellow-brown-black (d) brown-yellow-brown
37. 37.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
39. 39.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
40. 40.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =

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