Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 796 · 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 grey stand for?
2. 2.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
4. 4.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
6. 6.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) orange-red-brown (b) yellow-red-black (c) red-orange-black (d) orange-red-black
8. 8.🌈 In the resistor colour code, which number does red stand for?
9. 9.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
10. 10.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
11. 11.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
13. 13.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
14. 14.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
15. 15.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 In the resistor colour code, which number does white stand for?
17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-yellow (b) white-blue-orange (c) blue-white-orange (d) blue-white-red
18. 18.🌈 In the resistor colour code, which number does black stand for?
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) violet-orange-red (b) orange-violet-orange (c) orange-violet-red (d) orange-violet-brown
20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) green-violet-brown (b) green-violet-black (c) violet-green-brown (d) green-violet-red
21. 21.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
23. 23.🌈 In the resistor colour code, which number does brown stand for?
24. 24.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
25. 25.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
26. 26.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) blue-green-brown (b) green-black-brown (c) green-black-red (d) green-black-black
28. 28.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
29. 29.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
30. 30.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
31. 31.🌈 In the resistor colour code, which number does green stand for?
32. 32.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
33. 33.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-orange (b) orange-black-brown (c) yellow-orange-red (d) orange-black-red
36. 36.🌈 In the resistor colour code, which number does blue stand for?
37. 37.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
38. 38.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
40. 40.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =

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