Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 895 · 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) the gold band (b) the widest gap (c) any band (d) the one nearest an end
2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-brown (c) brown-blue-black (d) brown-blue-red
3. 3.🌈 In the resistor colour code, which number does blue stand for?
4. 4.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
6. 6.🌈 In the resistor colour code, which number does green stand for?
7. 7.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
8. 8.🌈 In the resistor colour code, which number does brown stand for?
9. 9.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
10. 10.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
11. 11.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
14. 14.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
15. 15.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
17. 17.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
18. 18.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
19. 19.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
21. 21.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) red-white-black (b) white-red-brown (c) brown-red-black (d) white-red-black
23. 23.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
24. 24.🌈 In the resistor colour code, which number does red stand for?
25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) red-white-black (c) white-brown-black (d) brown-white-brown
26. 26.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
27. 27.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
28. 28.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-brown-red (d) red-brown-brown
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-black (c) yellow-violet-red (d) yellow-violet-brown
31. 31.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
33. 33.🌈 In the resistor colour code, which number does violet stand for?
34. 34.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
35. 35.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
37. 37.🌈 In the resistor colour code, which number does black stand for?
38. 38.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-red (b) blue-orange-red (c) orange-blue-brown (d) orange-blue-orange

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