Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 577 · 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 yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
2. 2.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-orange (b) red-grey-red (c) grey-red-red (d) grey-red-brown
4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) green-brown-orange (b) brown-green-red (c) brown-green-orange (d) brown-green-yellow
5. 5.🌈 In the resistor colour code, which number does violet stand for?
6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-brown (b) white-orange-black (c) orange-white-black (d) brown-orange-black
9. 9.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
10. 10.🌈 In the resistor colour code, which number does green stand for?
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) violet-white-black (b) violet-white-red (c) white-violet-brown (d) violet-white-brown
12. 12.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-red (b) red-blue-orange (c) red-blue-yellow (d) blue-red-orange
15. 15.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
17. 17.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) green-violet-red (b) green-violet-brown (c) green-violet-black (d) violet-green-brown
19. 19.🌈 In the resistor colour code, which number does orange stand for?
20. 20.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
21. 21.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-orange (b) yellow-green-orange (c) yellow-yellow-red (d) yellow-yellow-yellow
23. 23.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
24. 24.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
25. 25.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
26. 26.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-red (b) brown-violet-orange (c) violet-brown-orange (d) brown-violet-yellow
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-black (b) yellow-green-brown (c) yellow-green-red (d) green-yellow-brown
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) orange-red-orange (b) red-orange-orange (c) red-orange-yellow (d) red-orange-red
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-brown (b) brown-red-red (c) brown-brown-red (d) brown-brown-orange
31. 31.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-yellow (b) yellow-grey-orange (c) grey-yellow-orange (d) grey-yellow-red
33. 33.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) grey-black-red (b) grey-black-orange (c) white-grey-red (d) grey-black-brown
35. 35.🌈 In the resistor colour code, which number does black stand for?
36. 36.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) brown-brown-black (c) brown-brown-brown (d) red-brown-black
38. 38.🌈 In the resistor colour code, which number does white stand for?
39. 39.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) brown-blue-black (b) brown-blue-brown (c) red-blue-black (d) blue-brown-black

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