Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 269 · 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.🌈 A resistor has the colour bands yellow, white, brown. What is its value (in ohms)?
2. 2.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
3. 3.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
4. 4.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
5. 5.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
7. 7.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
8. 8.🌈 In the resistor colour code, which number does white stand for?
9. 9.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4700 Ω resistor? (a) violet-yellow-red (b) yellow-violet-brown (c) yellow-violet-red (d) yellow-violet-orange
11. 11.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
12. 12.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
13. 13.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
14. 14.🌈 In the resistor colour code, which number does green stand for?
15. 15.🌈 In the resistor colour code, which number does orange stand for?
16. 16.🌈 In the resistor colour code, which number does red stand for?
17. 17.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
18. 18.🌈 In the resistor colour code, which number does yellow stand for?
19. 19.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-red (b) yellow-blue-red (c) blue-yellow-orange (d) blue-yellow-brown
22. 22.🌈 In the resistor colour code, which number does grey stand for?
23. 23.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-orange (b) orange-grey-orange (c) grey-orange-red (d) grey-orange-yellow
25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) red-yellow-red (b) yellow-red-orange (c) yellow-red-red (d) yellow-red-brown
26. 26.🌈 In the resistor colour code, which number does brown stand for?
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) violet-yellow-black (b) green-violet-black (c) yellow-violet-black (d) yellow-violet-brown
28. 28.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) blue-white-brown (b) white-blue-red (c) white-blue-black (d) white-blue-brown
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-red-black (b) brown-red-black (c) brown-red-brown (d) red-brown-black
31. 31.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
32. 32.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
33. 33.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
34. 34.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) red-violet-brown (b) violet-red-black (c) violet-red-red (d) violet-red-brown
36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-brown (b) brown-red-red (c) brown-brown-red (d) brown-brown-orange
37. 37.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
38. 38.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
40. 40.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?

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