Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 770 · 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) the one nearest an end (d) any band
2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-brown (b) blue-black-red (c) blue-black-black (d) violet-blue-brown
3. 3.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
4. 4.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-red (c) yellow-blue-brown (d) yellow-blue-black
6. 6.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
7. 7.🌈 In the resistor colour code, which number does violet stand for?
8. 8.🌈 In the resistor colour code, which number does yellow stand for?
9. 9.🌈 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
10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
11. 11.🌈 In the resistor colour code, which number does white stand for?
12. 12.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
13. 13.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
14. 14.🌈 In the resistor colour code, which number does green stand for?
15. 15.🌈 In the resistor colour code, which number does blue stand for?
16. 16.🌈 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
17. 17.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-orange (b) orange-grey-yellow (c) grey-orange-orange (d) orange-grey-red
19. 19.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
22. 22.🌈 In the resistor colour code, which number does grey stand for?
23. 23.🌈 A resistor has the colour bands brown, yellow, black. 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 63000 Ω resistor? (a) blue-orange-orange (b) blue-orange-red (c) orange-blue-orange (d) blue-orange-yellow
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) green-orange-black (b) yellow-orange-black (c) orange-yellow-black (d) yellow-orange-brown
27. 27.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) brown-violet-black (b) violet-brown-brown (c) grey-brown-black (d) violet-brown-black
29. 29.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-brown (b) red-orange-red (c) red-orange-orange (d) orange-red-red
31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-yellow (b) orange-green-orange (c) orange-green-red (d) green-orange-orange
32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-red (b) grey-red-orange (c) grey-red-brown (d) red-grey-red
33. 33.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-orange (b) blue-green-brown (c) green-blue-red (d) blue-green-red
35. 35.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) blue-grey-black (b) grey-blue-black (c) white-blue-black (d) grey-blue-brown
37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-orange (b) grey-white-red (c) white-grey-orange (d) grey-white-yellow
38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) yellow-red-black (b) red-orange-black (c) orange-red-black (d) orange-red-brown
39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-brown (b) red-green-brown (c) green-red-black (d) green-red-red
40. 40.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?

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