Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 124 · 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.🌈 In the resistor colour code, which number does yellow stand for?
2. 2.🌈 In the resistor colour code, which number does brown stand for?
3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
4. 4.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
5. 5.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
6. 6.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) red-blue-black (b) brown-blue-brown (c) brown-blue-black (d) blue-brown-black
9. 9.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
10. 10.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
11. 11.🌈 In the resistor colour code, which number does white stand for?
12. 12.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
13. 13.🌈 In the resistor colour code, which number does black stand for?
14. 14.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
15. 15.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 In the resistor colour code, which number does grey stand for?
17. 17.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) red-green-black (b) red-green-brown (c) green-red-black (d) orange-green-black
19. 19.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
21. 21.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-orange (b) yellow-green-red (c) green-yellow-red (d) green-yellow-brown
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) brown-brown-black (b) brown-white-black (c) white-brown-brown (d) white-brown-black
25. 25.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
26. 26.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
27. 27.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
28. 28.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
29. 29.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) white-brown-black (b) brown-white-brown (c) white-brown-brown (d) white-brown-red
31. 31.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-black (c) brown-orange-brown (d) orange-brown-black
34. 34.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
35. 35.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
36. 36.🌈 In the resistor colour code, which number does orange stand for?
37. 37.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
39. 39.🌈 In the resistor colour code, which number does red stand for?
40. 40.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =

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