Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 384 · 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 green stand for?
3. 3.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
4. 4.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
5. 5.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
6. 6.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) violet-orange-black (b) blue-orange-brown (c) blue-orange-black (d) orange-blue-black
8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
9. 9.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65000 Ω resistor? (a) blue-green-orange (b) blue-green-red (c) blue-green-yellow (d) green-blue-orange
11. 11.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
13. 13.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
14. 14.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
15. 15.🌈 In the resistor colour code, which number does black stand for?
16. 16.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
17. 17.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
18. 18.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
19. 19.🌈 In the resistor colour code, which number does blue stand for?
20. 20.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 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
22. 22.🌈 In the resistor colour code, which number does violet stand for?
23. 23.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) red-violet-black (b) violet-brown-black (c) brown-violet-black (d) brown-violet-brown
25. 25.🌈 In the resistor colour code, which number does orange stand for?
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) orange-blue-black (b) blue-red-black (c) red-blue-brown (d) red-blue-black
27. 27.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
28. 28.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-red (b) blue-green-orange (c) blue-green-brown (d) green-blue-red
30. 30.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
31. 31.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
33. 33.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
35. 35.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
38. 38.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
39. 39.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
40. 40.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =

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