Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 130 · 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 black stand for?
2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-black (b) brown-yellow-brown (c) yellow-brown-brown (d) brown-yellow-red
3. 3.🌈 In the resistor colour code, which number does grey stand for?
4. 4.🌈 In the resistor colour code, which number does orange stand for?
5. 5.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 620 Ω resistor? (a) blue-red-red (b) blue-red-brown (c) red-blue-brown (d) blue-red-black
7. 7.🌈 In the resistor colour code, which number does red stand for?
8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) red-white-orange (b) white-red-red (c) white-red-orange (d) white-red-yellow
10. 10.🌈 In the resistor colour code, which number does brown stand for?
11. 11.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
12. 12.🌈 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
13. 13.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
14. 14.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-red-orange (b) red-red-red (c) red-orange-red (d) red-red-brown
16. 16.🌈 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
17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-black (b) blue-red-black (c) red-green-black (d) green-red-brown
18. 18.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
19. 19.🌈 In the resistor colour code, which number does white stand for?
20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) brown-blue-brown (b) blue-brown-black (c) brown-blue-black (d) red-blue-black
21. 21.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-black-black (b) yellow-black-brown (c) yellow-black-black (d) green-yellow-black
23. 23.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-brown (b) red-white-orange (c) red-white-red (d) white-red-red
25. 25.🌈 In the resistor colour code, which number does violet stand for?
26. 26.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) white-grey-brown (c) brown-grey-black (d) white-grey-black
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 750 Ω resistor? (a) green-violet-brown (b) violet-green-brown (c) violet-green-black (d) violet-green-red
29. 29.🌈 In the resistor colour code, which number does blue stand for?
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-yellow (b) violet-white-red (c) violet-white-orange (d) white-violet-orange
31. 31.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) white-brown-black (c) brown-white-brown (d) red-white-black
33. 33.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
34. 34.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) brown-blue-orange (b) blue-brown-red (c) blue-brown-yellow (d) blue-brown-orange
36. 36.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-black (b) yellow-grey-brown (c) grey-yellow-black (d) green-grey-black
39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) blue-orange-orange (b) blue-orange-red (c) orange-blue-red (d) blue-orange-brown
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-brown (b) green-blue-red (c) green-green-red (d) green-green-orange

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