Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 847 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-brown (b) grey-white-black (c) brown-grey-black (d) white-grey-black
2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) grey-red-orange (b) red-grey-yellow (c) red-grey-red (d) red-grey-orange
3. 3.🌈 In the resistor colour code, which number does black stand for?
4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) white-red-orange (b) red-white-red (c) red-white-yellow (d) red-white-orange
5. 5.🌈 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
6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) violet-violet-black (b) violet-blue-black (c) blue-violet-brown (d) blue-violet-black
7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
8. 8.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
9. 9.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
10. 10.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 In the resistor colour code, which number does red stand for?
12. 12.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
13. 13.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
14. 14.🌈 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
15. 15.🌈 In the resistor colour code, which number does grey stand for?
16. 16.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) grey-brown-black (b) grey-brown-brown (c) brown-grey-black (d) white-brown-black
18. 18.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-black (b) brown-grey-brown (c) grey-brown-black (d) red-grey-black
20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) green-orange-black (b) green-orange-brown (c) green-orange-red (d) orange-green-brown
21. 21.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-red (b) blue-white-yellow (c) blue-white-orange (d) white-blue-orange
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-brown (b) brown-white-black (c) brown-brown-black (d) white-brown-black
24. 24.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-brown (b) white-blue-red (c) blue-white-brown (d) white-blue-black
26. 26.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-brown (b) white-red-black (c) brown-red-black (d) red-white-black
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8400 Ω resistor? (a) grey-yellow-orange (b) grey-yellow-red (c) yellow-grey-red (d) grey-yellow-brown
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-brown (b) red-grey-black (c) grey-red-black (d) orange-grey-black
30. 30.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
31. 31.🌈 In the resistor colour code, which number does green stand for?
32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-black (b) green-white-red (c) green-white-brown (d) white-green-brown
33. 33.🌈 In the resistor colour code, which number does brown stand for?
34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-red (b) red-blue-brown (c) red-blue-black (d) blue-red-brown
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-orange (b) green-violet-yellow (c) violet-green-orange (d) green-violet-red
36. 36.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 In the resistor colour code, which number does violet stand for?
38. 38.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?

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