Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 788 · 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 grey, violet, red. What is its value in kilo-ohms (kΩ)? =
2. 2.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-brown (c) yellow-violet-black (d) yellow-violet-red
4. 4.🌈 In the resistor colour code, which number does red stand for?
5. 5.🌈 In the resistor colour code, which number does orange stand for?
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) blue-white-black (b) white-blue-black (c) white-blue-brown (d) brown-blue-black
8. 8.🌈 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
9. 9.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
10. 10.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-yellow (b) red-brown-orange (c) brown-red-red (d) brown-red-orange
12. 12.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
14. 14.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
15. 15.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) red-white-black (b) white-red-black (c) white-red-brown (d) brown-red-black
17. 17.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
18. 18.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
19. 19.🌈 In the resistor colour code, which number does white stand for?
20. 20.🌈 In the resistor colour code, which number does black stand for?
21. 21.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-orange (b) blue-orange-red (c) orange-blue-orange (d) blue-orange-yellow
23. 23.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
24. 24.🌈 A resistor has the colour bands yellow, white, red. What is its value (in ohms)?
25. 25.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
26. 26.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
27. 27.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
28. 28.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
29. 29.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
30. 30.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
31. 31.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
33. 33.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
35. 35.🌈 In the resistor colour code, which number does blue stand for?
36. 36.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?

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