Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 173 · 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 band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
2. 2.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
3. 3.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
4. 4.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
6. 6.🌈 In the resistor colour code, which number does grey stand for?
7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-brown (b) brown-blue-black (c) blue-white-black (d) white-blue-black
8. 8.🌈 In the resistor colour code, which number does red stand for?
9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) green-orange-black (b) yellow-green-black (c) orange-green-black (d) orange-green-brown
10. 10.🌈 In the resistor colour code, which number does black stand for?
11. 11.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-red (c) orange-grey-black (d) orange-grey-brown
13. 13.🌈 In the resistor colour code, which number does brown stand for?
14. 14.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) white-brown-black (b) grey-brown-brown (c) grey-brown-black (d) brown-grey-black
16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) brown-grey-orange (b) grey-brown-orange (c) grey-brown-red (d) grey-brown-yellow
17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) brown-white-brown (b) white-brown-black (c) white-brown-red (d) white-brown-brown
18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) yellow-red-orange (b) yellow-red-yellow (c) red-yellow-orange (d) yellow-red-red
19. 19.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
21. 21.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
23. 23.🌈 In the resistor colour code, which number does yellow stand for?
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-brown (c) yellow-brown-red (d) yellow-brown-black
25. 25.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
26. 26.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) orange-red-red (c) red-black-red (d) red-black-brown
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-black-black (b) orange-red-black (c) red-black-black (d) red-black-brown
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7800 Ω resistor? (a) grey-violet-red (b) violet-grey-brown (c) violet-grey-red (d) violet-grey-orange
30. 30.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) white-brown-red (b) brown-white-brown (c) brown-white-red (d) brown-white-orange
32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) blue-brown-red (b) brown-blue-orange (c) blue-brown-orange (d) blue-brown-yellow
33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-brown (b) violet-green-black (c) blue-green-black (d) green-blue-black
34. 34.🌈 In the resistor colour code, which number does orange stand for?
35. 35.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) yellow-orange-brown (b) orange-yellow-black (c) green-orange-black (d) yellow-orange-black
37. 37.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
39. 39.🌈 In the resistor colour code, which number does green stand for?
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-brown (b) green-grey-black (c) white-green-black (d) grey-green-black

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